package/linux-firmware: Add option to install cadence MHDP8546 DPI/DP bridge firmware

Cadence MHDP8546 DPTX IP used in TI J721E SoC needs the firmware to
work.

Signed-off-by: Andy Yan <andyshrk@163.com>
[Julien: move Config.in entry from "Wifi" to "Video" section]
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/linux-firmware/Config.in

@@ -33,6 +33,11 @@ config BR2_PACKAGE_LINUX_FIRMWARE_AMDGPU
 	help
 	  Firmware files for AMD GPU video cards.
 
+config BR2_PACKAGE_LINUX_FIRMWARE_CDNS_MHDP8546
+	bool "Cadence MHDP8546"
+	help
+	  Firmware file for the Cadence MHDP8546 DPI/DP bridge.
+
 config BR2_PACKAGE_LINUX_FIRMWARE_CNM_WAVE521C_K3_CODEC
 	bool "Chips&Media Wave 521C codec IP for K3"
 	help

package/linux-firmware/linux-firmware.hash

@@ -15,6 +15,7 @@ sha256  515bf4c9d620a87458e4447fe01a0e9bc384d1c3e0037cc4c3d2037b1ff25525  ath12k
 sha256  bf1cb89140fe7e138fec229b26fa45d2fb46f416ab559916c6e56c0224df2e8e  LICENCE.bnx2
 sha256  691f2b5e3e94e06aa89450c99ff08c83336c77fe4ad64a609b1cddea4bf98727  LICENCE.bnx2x
 sha256  b16056fc91b82a0e3e8de8f86c2dac98201aa9dc3cbd33e8d38f1b087fcec30d  LICENCE.broadcom_bcm43xx
+sha256  5b97965d9a820a747fa1ab6339290cea0e6ce86b001e6620c4de4c0df532ed2f  LICENCE.cadence
 sha256  a5777f9e80aca0603b0648454de996168b1c530322550ccda94d6d78bcf6c061  LICENCE.chelsio_firmware
 sha256  88236d5ae45b7abc96c2ab4c6952af88758e24b17412dd173746ee1c559b3c6f  LICENCE.cnm
 sha256  ae0db6cc4db33941148df0f67de53e76a77b1b5a46b3165edb7040aa2750015f  LICENCE.cypress

package/linux-firmware/linux-firmware.mk

@@ -954,6 +954,11 @@ LINUX_FIRMWARE_FILES += ti_3410.fw ti_5052.fw \
 LINUX_FIRMWARE_ALL_LICENSE_FILES += LICENCE.moxa
 endif
 
+ifeq ($(BR2_PACKAGE_LINUX_FIRMWARE_CDNS_MHDP8546),y)
+LINUX_FIRMWARE_FILES += cadence/mhdp8546.bin
+LINUX_FIRMWARE_ALL_LICENSE_FILES += LICENCE.cadence
+endif
+
 ifeq ($(BR2_PACKAGE_LINUX_FIRMWARE_CX231XX),y)
 LINUX_FIRMWARE_FILES += v4l-cx231xx-avcore-01.fw
 # No license file; the license is in the file WHENCE