arm-bsp/linux: add ffa driver to TC0

This patch contains initial version of ffa driver adopted for
android11-5.4-lts kernel.

This is based on prototype ffa driver released by Arm.

Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: Idb198cc77368a95257f1b5bff37b17bd13144109
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm-bsp/recipes-kernel/linux/linux-arm-platforms.inc

@@ -76,6 +76,7 @@ SRC_URI_append_tc0 = " \
     file://0006-mailbox-arm_mhuv2-add-multi-word-transport-protocol-.patch \
     file://0007-firmware-arm_scmi-Add-fast_switch_possible-api.patch \
     file://0008-cpufreq-arm_scmi-Set-fast_switch_possible-conditiona.patch \
+    file://0009-driver-firmware-Initial-version-of-ffa-driver-based-.patch \
     "
 
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