video: Drop DEV_FLAGS_SYSTEM flag

DEV_FLAGS_SYSTEM does not have any actual meaning, hence drop it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/input/tegra-kbc.c b/drivers/input/tegra-kbc.c
index c9c9fac..6b88db4 100644
--- a/drivers/input/tegra-kbc.c
+++ b/drivers/input/tegra-kbc.c
@@ -358,7 +358,7 @@
 
 	memset(&dev, '\0', sizeof(dev));
 	strcpy(dev.name, "tegra-kbc");
-	dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
+	dev.flags = DEV_FLAGS_INPUT;
 	dev.getc = kbd_getc;
 	dev.tstc = kbd_tstc;
 	dev.start = init_tegra_keyboard;