staging: bcm2835-audio: Fixed initialization of global to "false"

bcm2835-vchiq.c:
fixing ERROR: do not initialise globals to false

Instead of explicitly initializing global variable force_bulk to "false",
declared force_bulk as static variable.

Signed-off-by: Abhijit Naik <abhijitnaik27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/bcm2835-audio/bcm2835-vchiq.c

@@ -65,7 +65,7 @@ struct bcm2835_audio_instance {
 	short peer_version;
 };
 
-bool force_bulk = false;
+static bool force_bulk;
 
 /* ---- Private Variables ---------------------------------------------------- */