powerpc: add FHCI USB, FSL MCU, FSL UPM and GPIO LEDs bindings

This patch adds few bindings for the new drivers to be submitted through
the appropriate maintainers.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
4 files changed