Blackfin: add proper ELF markings to some assembly functions

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/lib_blackfin/memset.S b/lib_blackfin/memset.S
index c33c551..26f63cd 100644
--- a/lib_blackfin/memset.S
+++ b/lib_blackfin/memset.S
@@ -31,6 +31,7 @@
  */
 
 .globl _memset;
+.type _memset, STT_FUNC;
 _memset:
 	P0 = R0 ;              /* P0 = address */
 	P2 = R2 ;              /* P2 = count   */
@@ -91,3 +92,5 @@
 	B[P0++] = R1;
 	B[P0++] = R1;
 	JUMP .Laligned;
+
+.size _memset, .-_memset