[PATCH] powerpc: fix udbg warning

Fix an implicit declaration warning in hash_utils_64.c
when udbg is enabled.

hash_utils_64.c: In function =91htab_bolt_mapping=92:
hash_utils_64.c:169: warning: implicit declaration of function =91udbg_pr=
intf=92


Signed-off-by: Geoff Levand <redacted>

---

Index: a/arch/powerpc/mm/hash_utils_64.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

--- a.orig/arch/powerpc/mm/hash_utils_64.c
+++ a/arch/powerpc/mm/hash_utils_64.c

@@ -51,6 +51,7 @@
 #include <asm/cputable.h>
 #include <asm/abs_addr.h>
 #include <asm/sections.h>
+#include <asm/udbg.h>

 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)