i2c: muxes: pca954x: Add MAX735x/MAX736x support

Add support for the following Maxim chips using the existing PCA954x
driver:
- MAX7356
- MAX7357
- MAX7358
- MAX7367
- MAX7368
- MAX7369

All added Maxim chips behave like the PCA954x, where a single SMBUS byte
write selects up to 8 channels to be bridged to the primary bus.

Tested using the MAX7358.

Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2 files changed