brcm2708: update linux 4.9 patches to latest version

As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.9.y

- Remove led1 from diag.sh for RPi3 since it causes boot issues.
- Fix modules.mk typos.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

target/linux/brcm2708/base-files/etc/diag.sh

@@ -12,8 +12,7 @@ set_state() {
 		status_led="led0"
 		;;
 	rpi-b-plus |\
-	rpi-2-b |\
-	rpi-3-b)
+	rpi-2-b)
 		status_led="led1"
 		;;
 	esac