xkeyboard-config: update 2.44 -> 2.45

xkeyboard-config: update 2.44 -> 2.45

License-update: disclaimer and copyright clarifications per
https://gitlab.freedesktop.org/xkeyboard-config/xkeyboard-config/-/merge_requests/821

Replace manual symlink creation with a meson option.

Drop no-op autoconf options.

Adjust packaging as this is where upstream installs now.

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>