bcm27xx/bcm2712: add RP1 drivers via kmods
Add kmods for the following RP1 options that not all users
will necessarily need or want compiled in:
* Composite video
* Display video
* LED control
* PWM control
* Serial video
Build system: x86/64
Build-tested: bcm2712/RPi5B
Run-tested: bcm2712/RPi5B
Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/17233
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit
d6c5805db37d42d29e190b7f2dc49ed8e4545e00)