sysota: generate RAUC configuration file from template

As we add support for additional boards, doing it by copying and modifying a file with relatively few parts changing got tedious.

The change adds half a dozen new variables for selecting the boot loader type, various strings and directories. The defaults are safe, even if unused, for all kinds of boards. The machine-specific overrides tune the bootloader used by each board and provide proper identification strings.

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

meta-oniro-core/recipes-core/sysota/files/qemux86/sysotad.conf

-# SPDX-FileCopyrightText: Huawei Inc.
-#
-# SPDX-License-Identifier: Apache-2.0
-
-[OTA]
-BootLoaderType=GRUB
-BootPartitionMountDir=/run/mount/boot
-
-[GRUB]
-EnvPath=/run/mount/boot/EFI/BOOT/grubenv
-
-[Device]
-Maker=Oniro Project
-Model=QEMU Virtual Machine
-
-[Compatible]
-Machine=qemux86
-
-[Quirks]
-RebootDelay=180