AW_CLK_FACTOR_POWER_OF_FOUR was added to simplify two factors of NKMP clocks
that had /1 and /4 divisors, and AW_CLK_FACTOR_HAS_BIT_COND to support ahb1 that apparently
supports both b10 and b11 as meaning PLL_PERIPH/prediv.
ccu-r was amended because the A83t uses the same clocks but names them differently, and
faking it seemed like not such a good idea.
I think I still need to go back through and do a little bit of style(9) cleanup.
This also obviously needs to wait until Linux 4.14 dts gets imported, as my testing is based
off of an updated upstream. I've included those changes and the relevant update here purely for
the sake of review/testing.