agl-compositor: add workaround for flutter image

agl-compositor: add workaround for flutter image

This changes the SRCREV to include:

- layout: Add a fallback for reading activation-area
- shell: Don't reset the activation area always

Bug-AGL: SPEC-4829

Change-Id: I1b668c07a2e948289d7d931576fdccda5a44d17b
Signed-off-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/29009
Tested-by: Jenkins Job builder account
ci-image-build: Jenkins Job builder account
ci-image-boot-test: Jenkins Job builder account