rpi-firmware: bump version

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/rpi-firmware/rpi-firmware.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256 b2ce949db3745354383ac0d66107cbbb8902ccbf5fc027be8824519c44d5a302 rpi-firmware-70143fe9d371cd6486a80d6765e93b5574212b64.tar.gz
+sha256 f7b649ac837a4a9c12a8f96962da310ca4efd6658621d89286b421b8784a4980 rpi-firmware-ad8608c08b122b2c228dba0ff5070d6e9519faf5.tar.gz

package/rpi-firmware/rpi-firmware.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-RPI_FIRMWARE_VERSION = 70143fe9d371cd6486a80d6765e93b5574212b64
+RPI_FIRMWARE_VERSION = ad8608c08b122b2c228dba0ff5070d6e9519faf5
 RPI_FIRMWARE_SITE = $(call github,raspberrypi,firmware,$(RPI_FIRMWARE_VERSION))
 RPI_FIRMWARE_LICENSE = BSD-3c
 RPI_FIRMWARE_LICENSE_FILES = boot/LICENCE.broadcom