Blackfin: mark bfin_reset static

The function is only used locally, so mark it static.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

cpu/blackfin/reset.c

@@ -20,7 +20,7 @@
  * the core reset.
  */
 __attribute__ ((__l1_text__, __noreturn__))
-void bfin_reset(void)
+static void bfin_reset(void)
 {
 	/* Wait for completion of "system" events such as cache line
 	 * line fills so that we avoid infinite stalls later on as