Add a bunch more missing ENDs to assembler routines.

This isn't everything; I've missed out those x86 files that are

Change-Id: Idb7bb1a68796d6c0b70ea2b5c3300e49da6c62d2
diff --git a/libc/arch-x86/bionic/sigsetjmp.S b/libc/arch-x86/bionic/sigsetjmp.S
index c990a05..70cc6db 100644
--- a/libc/arch-x86/bionic/sigsetjmp.S
+++ b/libc/arch-x86/bionic/sigsetjmp.S
@@ -61,6 +61,7 @@
 	movl	%edi,20(%ecx)
 	xorl	%eax,%eax
 	ret
+END(sigsetjmp)
 
 ENTRY(siglongjmp)
 	movl	4(%esp),%edx
@@ -90,3 +91,4 @@
 	incl	%eax
 2:	movl	%ecx,0(%esp)
 	ret
+END(siglongjmp)