The kmod-rpi-panel-attiny-regulator and kmod-rpi-panel-7inch-touchscreen
are included in target modules.mk file, they should also depend on the target,
otherwise they can be selected from every target.
Fix the AutoProbe for panel-raspberrypi-touchscreen too.
Link: https://github.com/openwrt/openwrt/pull/19480
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>