Hide rt_sigqueueinfo.

Bug: 19358804
Change-Id: I38a53ad64c81d0eefdd1d24599e769fd8a477a56
diff --git a/libc/arch-x86/syscalls/__rt_sigqueueinfo.S b/libc/arch-x86/syscalls/___rt_sigqueueinfo.S
similarity index 89%
rename from libc/arch-x86/syscalls/__rt_sigqueueinfo.S
rename to libc/arch-x86/syscalls/___rt_sigqueueinfo.S
index 4152100..97d167f 100644
--- a/libc/arch-x86/syscalls/__rt_sigqueueinfo.S
+++ b/libc/arch-x86/syscalls/___rt_sigqueueinfo.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(__rt_sigqueueinfo)
+ENTRY(___rt_sigqueueinfo)
     pushl   %ebx
     .cfi_def_cfa_offset 8
     .cfi_rel_offset ebx, 0
@@ -28,4 +28,5 @@
     popl    %ecx
     popl    %ebx
     ret
-END(__rt_sigqueueinfo)
+END(___rt_sigqueueinfo)
+.hidden ___rt_sigqueueinfo