Blackfin: add proper ELF markings to some assembly functions

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/lib_blackfin/memcpy.S b/lib_blackfin/memcpy.S
index 24577be..e6b359a 100644
--- a/lib_blackfin/memcpy.S
+++ b/lib_blackfin/memcpy.S
@@ -23,6 +23,7 @@
 .align 2
 
 .globl _memcpy_ASM;
+.type _memcpy_ASM, STT_FUNC;
 _memcpy_ASM:
 	CC = R2 <=  0;	/* length not positive?*/
 	IF CC JUMP  .L_P1L2147483647;	/* Nothing to do */
@@ -112,3 +113,5 @@
 	B[P0--] = R1;
 
 	RTS;
+
+.size _memcpy_ASM, .-_memcpy_ASM