agl-compositor_git: Bump SRCREV to latest

agl-compositor_git: Bump SRCREV to latest

This SRCREV bump updates includes some minor fixes when hot-plugging the
connector, and includes set_app_float, set_app_normal and
set_app_fullscreen together with an implementation for deactivation of
windows using the gRPC API.

With this bump we also provide a versioned so libexec_compositor library
rather than a generic unversioned one.

In detail the following changes have been added:

- 4e4624dee9850b4a4e5 grpc-proxy: Add set_app_fullscreen functionality
- 9eb8ca6ac7473107ebe shell: Reset normal state when getting back to maximized
- 359a0612e48d7d21d52 protocol: Add set_app_normal request
- 4af44df30c1784a69b9 protocol, grpc-proxy: Add support for set_app_float
- 65fc5191f046ad8c7ba protocol/grpc-proxy: Add deactivate_app request
- 28ec0cff16d62260fb1 compositor: Added layout_save/layout_restore
- ee50083d93869aaa581 shell: Check for a valid ivi_surface
- 02fcb317161c08bcf02 shell: Check for invalid outputs passed on when activating
- d98b08f1fcb6ff6ccc7 compositor: Fix memleak when disabling the output
- 53a039ff1c4b05aaacc ivi-compositor: Add support for multiple app_ids
- ce8dd33f3762e0ec449 meson: Deprecate waltham and inform users of that
- 6fd11a88c4d3c82e33b meson: Bump to version 0.0.21
- 4003cfb04b7bae04c32 shell: Reset the area activation

Change-Id: I2a2ea18124a825e7e7709aab9c4a4285377a45b0
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/28564
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>