QT v6.5 is a long term support (LTS) and is the version used in newer
releases from NXP (based on Yocto 4.2 mickledore)
This commit basically backports the QT v6.5 from meta-freescale community
layer (mickledore) with some recipe's polishing from meta-imx.
https://onedigi.atlassian.net/browse/DEL-8675
Signed-off-by: Javier Viguera <javier.viguera@digi.com>