License file name change will break boot2qt builds for automotive images

https://codereview.qt-project.org/c/qt-apps/neptune3-ui/+/289912 renamed LICENSE.txt to LICENSE - this change affects our local build and will affect boot2qt build as soon as hashes will be updated in .bb files.

This happens due to the fact that yocto checks md5 sums of license files, and gathers license information from components being built.

So - if license is updated for the component, accompanying change to meta-boot2qt should be made.

For that to be fixed, in meta-boot2qt/recipes-qt/automotive/neptune3-ui_git.bb

that part should be changed as appropriate:

{{
LICENSE = "Apache-2.0 & ( GPL-3.0 | The-Qt-Company-Commercial )"
LIC_FILES_CHKSUM = "\
file://LICENSE.GPL3;md5=d32239bcb673463ab874e80d47fae504 \
file://imports_shared/assets/fonts/LICENSE.txt;md5=3b83ef96387f14655fc854ddc3c6bd57 \
"
}}

note LICENSE.txt - here, this is due to the fact that previous fonts version was Apache-2.0