sparc: Mark prom_early_alloc non-static.

A subsequent changeset will use this.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index e41df66..ba3c551 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -29,7 +29,7 @@
 
 static unsigned int prom_early_allocated;
 
-static void * __init prom_early_alloc(unsigned long size)
+void * __init prom_early_alloc(unsigned long size)
 {
 	void *ret;