package/rpi-firmware: bump version to 5476720

Version 5476720 match the with kernel 6.6.28.

Signed-off-by: Gaël PORTAY <gael.portay@rtone.fr>
Reviewed-by: Brandon Maier <brandon.maier@collins.com>
Tested-by: Brandon Maier <brandon.maier@collins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/rpi-firmware/rpi-firmware.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha256  dd43e77ca1a8969cdb7f05dd72a57f90862071d5a93bdd6aea8246aba85689cf  rpi-firmware-83dafbc92c0e63f76ca2ecdd42462d56489d1c77.tar.gz
+sha256  00fe5487376e9d5ed14cbc72a9b7a5bd8d6900c84aee10f6d656f192a26d161c  rpi-firmware-5476720d52cf579dc1627715262b30ba1242525e.tar.gz
 sha256  c7283ff51f863d93a275c66e3b4cb08021a5dd4d8c1e7acc47d872fbe52d3d6b  boot/LICENCE.broadcom

package/rpi-firmware/rpi-firmware.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-RPI_FIRMWARE_VERSION = 83dafbc92c0e63f76ca2ecdd42462d56489d1c77
+RPI_FIRMWARE_VERSION = 5476720d52cf579dc1627715262b30ba1242525e
 RPI_FIRMWARE_SITE = $(call github,raspberrypi,firmware,$(RPI_FIRMWARE_VERSION))
 RPI_FIRMWARE_LICENSE = BSD-3-Clause
 RPI_FIRMWARE_LICENSE_FILES = boot/LICENCE.broadcom