DRIVERS: SLIMBUS: slimbus enhancements mkII

Credit: @poondog
This time we keep the root freq to 11.
If Root Freq is set at 11, 24,576MHz has the best compatibility for all
present sampling rates (e.g, any sample rate can be converted, 48KHz to
96KHz, 44.1KHz to 96KHz, 48KHz to 128KHz etc.) Increasing the root
frequency is likely to cause invalid present sample rate combinations
which leads to audio glitches such as distortion. "A Natural Frequency
is defined as a CLK frequency that allows a family of data rates to be
supported. The different sample rate flows can be optimally supported by
changing a particular Natural Frequency using the Clock Gear." I looked
at a Clock Gear/RF table and it looks like CLK Gear 10 and RF 24,576MHz
(Stock RF) is an excellent combination due to its compatibility towards
every other sample rates.