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/lib/ins.S b/arch/blackfin/lib/ins.S
index 7d5e984..a17cc77 100644
--- a/arch/blackfin/lib/ins.S
+++ b/arch/blackfin/lib/ins.S
@@ -46,7 +46,7 @@
 .Llong_loop_e: 	NOP;
 	sti R3;
 	RTS;
-
+ENDPROC(_insl)
 
 ENTRY(_insw)
 	P0 = R0;	/* P0 = port */
@@ -61,6 +61,7 @@
 .Lword_loop_e: 	NOP;
 	sti R3;
 	RTS;
+ENDPROC(_insw)
 
 ENTRY(_insb)
 	P0 = R0;	/* P0 = port */
@@ -75,3 +76,4 @@
 .Lbyte_loop_e:  NOP;
 	sti R3;
 	RTS;
+ENDPROC(_insb)