[ARM] 5227/1: Add the ENDPROC declarations to the .S files

This declaration specifies the "function" type and size for various
assembly functions, mainly needed for generating the correct branch
instructions in Thumb-2.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/lib/io-readsl.S b/arch/arm/lib/io-readsl.S
index 75a9121..5fb97e7 100644
--- a/arch/arm/lib/io-readsl.S
+++ b/arch/arm/lib/io-readsl.S
@@ -76,3 +76,4 @@
 8:		mov	r3, ip, get_byte_0
 		strb	r3, [r1, #0]
 		mov	pc, lr
+ENDPROC(__raw_readsl)