recipes-bsp/u-boot-compulab: Temporary workaround for build failure d…

…ue to renamed branch

The original branch has been renamed and marked for removal.
The new u-boot 2022.04 branch does not contain the ucm-imx9
board configuration files.

See comment in commit for upstream issue raised for clarification.

Signed-off-by: Alexandru Costache <alexandru@balena.io>

layers/meta-balena-imx9/recipes-bsp/u-boot/u-boot-compulab_%.bbappend

@@ -19,6 +19,13 @@ BALENA_UBOOT_DEVICE_TYPES = "usb mmc"
 # revision is used by which balenaOS release
 SRCREV="34382c7df25560904a521d3f62bf5768899c55a2"
 
+# WORKAROUND for unblocking builds, because the
+# old upstream branch has been renamed.
+# This board may need a BSP update after the upstream issue
+# https://github.com/compulab-yokneam/u-boot-compulab/issues/6
+# is clarified
+SRCBRANCH = "to-be-removed/u-boot-compulab_v2022.04"
+
 # Bring in configure step from poky
 # to make sure the merge_config script is called
 # appropriately, otherwise the build will fail