V4L/DVB (5567): Cx88-mpeg.c: make 2 functions static

This patch makes two needlessly global functions static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cx88/cx88-mpeg.c

@@ -613,7 +613,7 @@ struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board
 }
 
 /* Driver asked for hardware access. */
-int cx8802_request_acquire(struct cx8802_driver *drv)
+static int cx8802_request_acquire(struct cx8802_driver *drv)
 {
 	struct cx88_core *core = drv->core;
 
@@ -633,7 +633,7 @@ int cx8802_request_acquire(struct cx8802_driver *drv)
 }
 
 /* Driver asked to release hardware. */
-int cx8802_request_release(struct cx8802_driver *drv)
+static int cx8802_request_release(struct cx8802_driver *drv)
 {
 	struct cx88_core *core = drv->core;