Don't refer to x86-specific function on other architectures to avoid linker error.

Submitted upstream at <https://marc.info/?l=linux-bluetooth&m=160857625608440&w=2>

diff --git a/sbc/sbc_primitives.c b/sbc/sbc_primitives.c
--- a/sbc/sbc_primitives.c
+++ b/sbc/sbc_primitives.c
@@ -593,7 +593,9 @@ static int sbc_calc_scalefactors_j(
 
 static void sbc_init_primitives_x86(struct sbc_encoder_state *state)
 {
+#if defined(__x86_64__) || defined(__i386__)
 	__builtin_cpu_init();
+#endif
 
 #ifdef SBC_BUILD_WITH_MMX_SUPPORT
 	if (__builtin_cpu_supports("mmx"))
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<tr><td><span title='2019-11-03 14:46:51 +0300'>2019-11-03</span></td><td><a href='/guix/commit/gnu/packages/monitoring.scm?id=13f0414ece4b2d6d12b32069df56cde40470f735'>gnu: zabbix-agentd: Update to 4.4.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/monitoring.scm (zabbix-agentd): Update to 4.4.1.
* gnu/services/monitoring.scm (%zabbix-front-end-configuration-nginx): Add
listen record field.
</span></span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2019-10-06 11:51:16 +0300'>2019-10-06</span></td><td><a href='/guix/commit/gnu/packages/monitoring.scm?id=e7f6d13722aed00ac16b49dfc03b2712e465b46a'>gnu: zabbix: Update to 4.2.7.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/monitoring.scm: (zabbix) Update to 4.2.7.

Signed-off-by: Efraim Flashner &lt;efraim@flashner.co.il&gt;
</span></span></td><td>Giovanni Biscuolo</td></tr>