Staging: line6: static function cleanups

This fixes all of the static function warnings that sparse complains
about.

Cc: Markus Grabner <grabner@icg.tugraz.at>
Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/line6/pod.c b/drivers/staging/line6/pod.c
index eba804f..614e9dc 100644
--- a/drivers/staging/line6/pod.c
+++ b/drivers/staging/line6/pod.c
@@ -398,7 +398,7 @@
 /*
 	Send channel number (i.e., switch to a different sound).
 */
-void pod_send_channel(struct usb_line6_pod *pod, int value)
+static void pod_send_channel(struct usb_line6_pod *pod, int value)
 {
 	line6_invalidate_current(&pod->dumpreq);
 
@@ -951,7 +951,7 @@
 /*
 	Create sysfs entries.
 */
-int pod_create_files2(struct device *dev)
+static int pod_create_files2(struct device *dev)
 {
 	int err;