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/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index dd45664..b69f517 100644
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -66,6 +66,7 @@
 	SP += 12;
 	/* - GDB stub fills this in by itself (if defined) */
 	rte;
+ENDPROC(_evt_emulation)
 #endif
 
 /* Common interrupt entry code.	 First we do CLI, then push
@@ -251,3 +252,4 @@
 #endif
 	call _system_call;
 	jump .Lcommon_restore_context;
+ENDPROC(_evt_system_call)