Boeffla ramfs: Fix autoroot + update to SuperSu 1.80
Samsung ramfs: Update to ramfs of firmware XXUGMK6
mali/midas-power: Decrease minimum voltage boundary

mali:
Decrease minimum voltage initialisation data for MAX77686 on buck3 rail / vdd_g3d to minimum value as defined in regulator driver.
Decrease minimum voltage soft-limit in GPU voltage control to same value.

midas-power.c: Adjust min/max voltages of several regulators to properly support undervolting
mali: GPU control for r3p2 mali

GPU frequency, scaling and voltage control.
Based on netarchy's initial implementation and improvements of gokhanmoral and
ported onto the pegasus-m400 / Galaxy.

credits to Netarchy, Gokhanmoral, AndreiLux, DerTeufel

Slightly adjusted by andip71
mali: add GPU overclocking frequencies

credits to Simone201
boeffla_defconfig: Add mali gpu frequency/voltage interface
Boeffla ramfs: Change GPU handling from none to 5 frequencies
Boeffla ramfs: Update to SuperSu 1.86
Release tag: 2.1-beta5