3rdparty/libgfxinit: Update submodule pointer

3rdparty/libgfxinit: Update submodule pointer

Update the submodule pointer to current main. This brings in 5 commits:

* e096913 connector_info: Fix HDMI/DVI default bytes per color setting
* 87469f2 gma config: Add new device IDs for Raptor Lake
* 4be2e75 gma: Update transcoder setup for TGL
* 4b991bf gfxtest: Drop unnecessary with of ancestor
* 17cfc92 tgl plls: Disable warnings about unused variable

Change-Id: Ic40edc773ba11ab9a0f9e92057bd687d10b95069
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82554
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>