bridges: mips64: Update call frame information.

Change-Id: I00bf0eaa69b3276b1baf18f4fa191ceaf1bc2f18
Reviewed-on: https://gerrit.libreoffice.org/16944Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

bridges/source/cpp_uno/gcc3_linux_mips64/call.s

@@ -82,8 +82,10 @@ privateSnippetExecutor:
 
 .Lfinish:
         ld	$ra,152($sp)
+        .cfi_restore 31
         jr	$ra
         daddiu	$sp,$sp,160
+        .cfi_def_cfa_offset 0
 
         .set	reorder
         .end	privateSnippetExecutor