Set visibility of global symbols used in ARM specific assembly file to
internal.

Taken from Debian:
https://salsa.debian.org/multimedia-team/mpeg2dec/blob/master/debian/patches/60_arm-private-symbols.patch

--- mpeg2dec.orig/libmpeg2/motion_comp_arm_s.S
+++ mpeg2dec/libmpeg2/motion_comp_arm_s.S
@@ -23,7 +23,8 @@
 
 @ ----------------------------------------------------------------
 	.align
-	.global MC_put_o_16_arm
+	.global   MC_put_o_16_arm
+	.internal MC_put_o_16_arm
 MC_put_o_16_arm:
 	@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
 	pld [r1]
@@ -83,7 +84,8 @@ MC_put_o_16_arm_align_jt:
 
 @ ----------------------------------------------------------------
 	.align
-	.global MC_put_o_8_arm
+	.global   MC_put_o_8_arm
+	.internal MC_put_o_8_arm
 MC_put_o_8_arm:
 	@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
 	pld [r1]
@@ -152,7 +154,8 @@ MC_put_o_8_arm_align_jt:
 .endm
 
 	.align
-	.global MC_put_x_16_arm
+	.global   MC_put_x_16_arm
+	.internal MC_put_x_16_arm
 MC_put_x_16_arm:
 	@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
 	pld [r1]
@@ -244,7 +247,8 @@ MC_put_x_16_arm_align_jt:
 
 @ ----------------------------------------------------------------
 	.align
-	.global MC_put_x_8_arm
+	.global   MC_put_x_8_arm
+	.internal MC_put_x_8_arm
 MC_put_x_8_arm:
 	@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
 	pld [r1]
ead69b9'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/CODE-OF-CONDUCT'>
<input type='hidden' name='id' value='6aa25ab3b332deb070e6d4c6ca2786e4dead69b9'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=6aa25ab3b332deb070e6d4c6ca2786e4dead69b9'>root</a>/<a href='/guix/log/CODE-OF-CONDUCT?id=6aa25ab3b332deb070e6d4c6ca2786e4dead69b9'>CODE-OF-CONDUCT</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/CODE-OF-CONDUCT?id=6aa25ab3b332deb070e6d4c6ca2786e4dead69b9&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-05-29 18:29:36 +0200'>2018-05-29</span></td><td><a href='/guix/commit/CODE-OF-CONDUCT?id=a076f19908d06b6df49f1c25c40de8838213cd71'>CODE-OF-CONDUCT: Switch to version 1.4 of the Contributor Covenant.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
emove now unnecessary uses of (guix grafts).</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-03-07 22:49:27 +0100'>2022-03-07</span></td><td><a href='/guix/commit/tests/derivations.scm?id=1cad3476189d2ce84fabe95b69db8fb85a10b67a'>derivations: Coalesce inputs that have the same output path.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-11-16 14:34:28 +0100'>2021-11-16</span></td><td><a href='/guix/commit/tests/derivations.scm?id=472a0e82a52a3d5d841e1dfad6b13e26082a5750'>daemon: Do not deduplicate files smaller than 8 KiB.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-06 11:41:48 +0100'>2021-03-06</span></td><td><a href='/guix/commit/tests/derivations.scm?id=c05ceaf2b650d090cf39a048193505cb4e6bd257'>tests: do not hard code HTTP ports</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2020-05-22 01:29:39 +0200'>2020-05-22</span></td><td><a href='/guix/commit/tests/derivations.scm?id=ce0be5675b702b2ff89aed1772ebb42af4150243'>packages: Introduce &lt;content-hash&gt; and use it in &lt;origin&gt;.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-22 00:35:23 +0200'>2020-05-22</span></td><td><a href='/guix/commit/tests/derivations.scm?id=9418aaa00db44d3e0e3318ff66faace0d7b43326'>tests: Test fixed-output derivations with several hash algorithms.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>