qtmultimedia: Fix cmake files in the SDK
The qtmultimedia build creates the videonode cmake files correctly, but somehow the installation steps "damages" some cmake files.
I suspect the "Replace resolved lib path with the lib name" of the qmake5_base_do_install step from qtmake5_base.bbclass to corrupt the installed files.
Thus redo a simple copy from the build dir to the install dir to fix the issue.
Otherwise one might get a problem during build:
CMake Error at /opt/guf-wayland/dunfell-6.0/sysroots/aarch64-guf-linux/usr/lib/cmake/Qt5Multimedia/Qt5MultimediaConfig.cmake:31 (message):
The imported target "Qt5::Multimedia" references the file
"/opt/guf-wayland/dunfell-6.0/sysroots/aarch64-guf-linux/usr/lib/plugins/videoimx6vivantevideonode"
but this file does not exist. Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
"/opt/guf-wayland/dunfell-6.0/sysroots/aarch64-guf-linux/usr/lib/cmake/Qt5Multimedia/Qt5Multimedia_QSGVivanteVideoNodeFactory.cmake"
but not all the files it references.
BCS 746-000565