Fix sigsuspend to use rt_sigsuspend on all platforms.

Change-Id: I981c1a66d35480d4457a0a08a1b042dac94daa5b
diff --git a/libc/arch-arm/syscalls/__sigsuspend.S b/libc/arch-arm/syscalls/__rt_sigsuspend.S
similarity index 76%
rename from libc/arch-arm/syscalls/__sigsuspend.S
rename to libc/arch-arm/syscalls/__rt_sigsuspend.S
index dc519d2..2e63e89 100644
--- a/libc/arch-arm/syscalls/__sigsuspend.S
+++ b/libc/arch-arm/syscalls/__rt_sigsuspend.S
@@ -3,13 +3,13 @@
 #include <linux/err.h>
 #include <machine/asm.h>
 
-ENTRY(__sigsuspend)
+ENTRY(__rt_sigsuspend)
     mov     ip, r7
-    ldr     r7, =__NR_sigsuspend
+    ldr     r7, =__NR_rt_sigsuspend
     swi     #0
     mov     r7, ip
     cmn     r0, #(MAX_ERRNO + 1)
     bxls    lr
     neg     r0, r0
     b       __set_errno
-END(__sigsuspend)
+END(__rt_sigsuspend)