bfin: switch to generic vfork, get rid of pointless wrappers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 4a38c68..86b5a09 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1431,7 +1431,7 @@
 	.long _sys_ni_syscall	/* old sys_ipc */
 	.long _sys_fsync
 	.long _sys_ni_syscall	/* old sys_sigreturn */
-	.long _sys_clone		/* 120 */
+	.long _bfin_clone		/* 120 */
 	.long _sys_setdomainname
 	.long _sys_newuname
 	.long _sys_ni_syscall	/* old sys_modify_ldt */