powerpc: fix implicit use of mutex.h by include/asm/spu.h
We've been getting the header implicitly via module.h in the past
but when we clean that up, we'll get this failure:
CC arch/powerpc/platforms/cell/beat_spu_priv1.o
In file included from arch/powerpc/platforms/cell/beat_spu_priv1.c:22:
arch/powerpc/include/asm/spu.h:190: error: field 'list_mutex' has incomplete type
make[2]: *** [arch/powerpc/platforms/cell/beat_spu_priv1.o] Error 1
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/arch/powerpc/include/asm/spu.h b/arch/powerpc/include/asm/spu.h
index 0c8b35d..4e360bd 100644
--- a/arch/powerpc/include/asm/spu.h
+++ b/arch/powerpc/include/asm/spu.h
@@ -26,6 +26,7 @@
#include <linux/workqueue.h>
#include <linux/sysdev.h>
+#include <linux/mutex.h>
#define LS_SIZE (256 * 1024)
#define LS_ADDR_MASK (LS_SIZE - 1)