Fix sigsuspend to use rt_sigsuspend on all platforms.

Change-Id: I981c1a66d35480d4457a0a08a1b042dac94daa5b
diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index 3a66c1b..dc7e3df 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -152,11 +152,11 @@
 syscall_src += arch-arm/syscalls/timerfd_settime.S
 syscall_src += arch-arm/syscalls/timerfd_gettime.S
 syscall_src += arch-arm/syscalls/sigaction.S
-syscall_src += arch-arm/syscalls/__sigsuspend.S
+syscall_src += arch-arm/syscalls/sigpending.S
 syscall_src += arch-arm/syscalls/__rt_sigaction.S
 syscall_src += arch-arm/syscalls/__rt_sigprocmask.S
+syscall_src += arch-arm/syscalls/__rt_sigsuspend.S
 syscall_src += arch-arm/syscalls/__rt_sigtimedwait.S
-syscall_src += arch-arm/syscalls/sigpending.S
 syscall_src += arch-arm/syscalls/signalfd4.S
 syscall_src += arch-arm/syscalls/socket.S
 syscall_src += arch-arm/syscalls/socketpair.S