video: driver: update definition same as prototype

Update function definition to be same as prototype to
avoid compile error

Change-Id: I92be0d96ce1e95e858cca6e5cad8de0564a60e5b
Signed-off-by: Deepa Guthyappa Madivalara <quic_dmadival@quicinc.com>

driver/vidc/src/msm_vidc_debug.c

@@ -375,7 +375,7 @@ static const struct file_operations stability_fops = {
 	.write = trigger_stability_write,
 };
 
-struct dentry* msm_vidc_debugfs_init_drv()
+struct dentry* msm_vidc_debugfs_init_drv(void)
 {
 	struct dentry *dir = NULL;