RMX1971: overlay/frameworks/base/core/res/res/values/config.xml enable...

RMX1971:  overlay/frameworks/base/core/res/res/values/config.xml enable charging control to 80 % In theroy, charging it to this 80 % help battery stay long

https://github.com/improbir/frameworks_base/blob/507d9449b83ffcd841bdd26db8b6b9375b2a3f57/core/res/res/values/custom_config.xml