staging: bcm2835: Use BIT_ULL macro

This patch fixes the checkpatch.pl check hint:

CHECK: Prefer using the BIT_ULL macro
Signed-off-by: Kilian Köppchen <kiliankoeppchen@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/bcm2835-camera/mmal-common.h

@@ -17,7 +17,7 @@
 #define MMAL_MAGIC MMAL_FOURCC('m', 'm', 'a', 'l')
 
 /** Special value signalling that time is not known */
-#define MMAL_TIME_UNKNOWN (1LL<<63)
+#define MMAL_TIME_UNKNOWN BIT_ULL(63)
 
 struct mmal_msg_context;