Custom kernels for Merlin(Redmi Note 9) and Lancelot (Redmi 9)

Flamescion :
- Underclock minimum CPU big freq from 850 to 500
- non uv kernels
- use 300Hz kernel time frequency
Phantasm :
- Underclock minimum CPU big freq from 850 to 500
- UV GPU : -50mV UV CPU Big -20mV
- UV CPU Little -10mV
- use 100Hz kernel time frequency

old links : https://www.pling.com/p/1850294/