linux-dey: add recipe for kernel 5.15 (at the moment only for ccimx6ul)

Signed-off-by: Javier Viguera <javier.viguera@digi.com>

meta-digi-arm/recipes-kernel/linux/linux-dey_5.15.bb

@@ -0,0 +1,36 @@
+# Copyright (C) 2022 Digi International
+
+SUMMARY = "Linux kernel for Digi boards"
+LICENSE = "GPL-2.0-only"
+LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46"
+
+# CONFIG_KERNEL_LZO in defconfig
+DEPENDS += "lzop-native"
+
+inherit kernel
+inherit ${@oe.utils.conditional('DEY_BUILD_PLATFORM', 'NXP', 'fsl-kernel-localversion', '', d)}
+
+SRCBRANCH = "v5.15.32/nxp/master"
+require recipes-kernel/linux/linux-dey-src.inc
+require ${@bb.utils.contains('DISTRO_FEATURES', 'virtualization', 'linux-virtualization.inc', '', d)}
+require ${@oe.utils.conditional('TRUSTFENCE_SIGN', '1', 'recipes-kernel/linux/linux-trustfence.inc', '', d)}
+
+# Use custom provided 'defconfig' if variable KERNEL_DEFCONFIG is cleared
+SRC_URI +="${@oe.utils.conditional('KERNEL_DEFCONFIG', '', 'file://defconfig', '', d)}"
+
+FILES:${KERNEL_PACKAGE_NAME}-image += "/boot/config-${KERNEL_VERSION}"
+
+# Don't include kernels in standard images
+RDEPENDS:${KERNEL_PACKAGE_NAME}-base = ""
+
+# Apply configuration fragments
+do_configure:append() {
+	# Only accept fragments ending in .cfg. If the fragments contain
+	# something other than kernel configs, it will be filtered out
+	# automatically.
+	if [ -n "${@' '.join(find_cfgs(d))}" ]; then
+		${S}/scripts/kconfig/merge_config.sh -m -O ${B} ${B}/.config ${@" ".join(find_cfgs(d))}
+	fi
+}
+
+COMPATIBLE_MACHINE = "(ccimx6ul)"