Blackfin arch: add proper ENDPROC()

add proper ENDPROC() to close out assembly functions
so size/type is set properly in the final ELF image

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

diff --git a/arch/blackfin/mach-common/cacheinit.S b/arch/blackfin/mach-common/cacheinit.S
index 8c17f09..7924a90 100644
--- a/arch/blackfin/mach-common/cacheinit.S
+++ b/arch/blackfin/mach-common/cacheinit.S
@@ -86,6 +86,8 @@
 	SSYNC;
 	STI R2;
 	RTS;
+
+ENDPROC(_bfin_icache_init)
 #endif
 
 #if defined(CONFIG_BLKFIN_DCACHE)
@@ -134,4 +136,6 @@
 	SSYNC;
 	STI R2;
 	RTS;
+
+ENDPROC(_bfin_dcache_init)
 #endif