[SPARC32]: missing exports

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c
index 27fdac9..a36ab9c 100644
--- a/arch/sparc/prom/printf.c
+++ b/arch/sparc/prom/printf.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 
 #include <asm/openprom.h>
 #include <asm/oplib.h>
@@ -44,3 +45,4 @@
 
 	prom_write(ppbuf, i);
 }
+EXPORT_SYMBOL(prom_printf);