headers_check fix: powerpc, ps3fb.h

fix the following 'make headers_check' warning:

  usr/include/asm-powerpc/ps3fb.h:33: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
diff --git a/arch/powerpc/include/asm/ps3fb.h b/arch/powerpc/include/asm/ps3fb.h
index 3f121fe..e7233a8 100644
--- a/arch/powerpc/include/asm/ps3fb.h
+++ b/arch/powerpc/include/asm/ps3fb.h
@@ -19,6 +19,7 @@
 #ifndef _ASM_POWERPC_PS3FB_H_
 #define _ASM_POWERPC_PS3FB_H_
 
+#include <linux/types.h>
 #include <linux/ioctl.h>
 
 /* ioctl */