sysota: add support for SECO Alvin board (aka B68)

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

meta-oniro-core/recipes-core/sysota/sysota_git.bb

@@ -108,6 +108,9 @@ SYSOTA_BOOTLOADER_TYPE:qemux86 := "GRUB"
 SYSOTA_MODEL:qemux86-64 := "QEMU Virtual Machine"
 SYSOTA_BOOTLOADER_TYPE:qemux86-64 := "GRUB"
 
+SYSOTA_MODEL:seco-intel-b68 := "B68 / Alvin"
+SYSOTA_BOOTLOADER_TYPE:seco-intel-b68 := "GRUB"
+
 do_install:prepend() {
     sed \
         -e 's,@SYSOTA_BOOTLOADER_TYPE@,${SYSOTA_BOOTLOADER_TYPE},g' \