linux: enable features recommended by RAUC

RAUC recommends using the "verity" format for update bundles.
Those put additional requirements on available kernel features.

Use configuration recommended by RAUC documentation setting:
CONFIG_{MD,BLK_DEV_{DM,LOOP},DM_VERITY,SQUASHFS}=y.

Closes: https://git.ostc-eu.org/distro/oniro/-/issues/157


Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>

meta-oniro-core/recipes-kernel/linux/linux-intel_%.bbappend

@@ -4,4 +4,7 @@
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/linux:"
 
-SRC_URI += "file://squashfs.cfg"
+SRC_URI += "\
+    file://squashfs.cfg \
+    file://rauc.cfg \
+    "

meta-oniro-core/recipes-kernel/linux/linux-oniro-tweaks-all.inc

@@ -18,6 +18,7 @@ SRC_URI += "file://hardening_memory.cfg"
 SRC_URI += "file://hardening_toolchain.cfg"
 SRC_URI += "file://hardening_usercopy.cfg"
 SRC_URI += "file://hardening_validation_checks.cfg"
+SRC_URI += "file://rauc.cfg"
 
 # For the gcc-plugins build of the kernel we need to ensure the right include
 # path for headers is picked up to use the natively build dependencies.

meta-oniro-core/recipes-kernel/linux/linux-raspberrypi_5.10.bb

@@ -10,4 +10,5 @@ require linux-raspberrypi_5.10.inc
 SRC_URI += "\
     file://powersave.cfg \
     file://android-drivers.cfg \
+    file://rauc.cfg \
     "

meta-oniro-core/recipes-kernel/linux/linux-seco_%.bbappend

@@ -4,4 +4,7 @@
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/linux:"
 
-SRC_URI += "file://squashfs.cfg"
+SRC_URI += "\
+    file://squashfs.cfg \
+    file://rauc.cfg \
+    "

meta-oniro-core/recipes-kernel/linux/linux/rauc.cfg

+# SPDX-FileCopyrightText: Huawei Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Enable support for RAUC verity bundle format.
+# https://rauc.readthedocs.io/en/v1.5.1/integration.html#kernel-configuration
+CONFIG_MD=y
+CONFIG_BLK_DEV_DM=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_DM_VERITY=y
+CONFIG_SQUASHFS=y