gnu: icedtea-7: Fix build on aarch64-linux....* gnu/packages/java.scm (icedtea-7)[native-inputs]: Remove obsolete,
architecture-dependent patch to "hotspot-drop"; replace with patch to fix
build on aarch64-linux.
* gnu/packages/patches/icedtea-7-hotspot-aarch64-use-c++98.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
Signed-off-by: Efraim Flashner <efraim@flashner.co.il>