defconfig: cleanup knockcode
Makefile: edit optimization flags
DRIVERS: SLIMBUS: initial overclocking of slimbus .Increase
 root freq from 11 (24.526MHz) to 31 max (27+MHz) which is the largest it will
 take .Increase clock gear from 7 to 10 (max again)

This means SLIMbus will use its maximum potential to give the best audio quality for the hardware. Takes advantage of both hardware and the mods from zeroinfinity, also opening the door for more things that were previously limited by this. Researched and experimented by ZeroInfinity and Poondog

Signed-off-by: poondog <markj338@gmail.com>
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.

ZeroInfinity/Poondog
slimbus: Optimize overclocking of master component

* Change root frequency to optimal value (11 was default)
* Add 44khz and 48khz to default SLIM RATES

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: Lens-F <tnoah12@gmail.com>