Default charge thresholds need to match profile

[ids1024]

The default thresholds should match one of the charging profiles offered through system76-power/gnome-control-center.

I guess we're still sorting out exactly how we want to handle this, but it seems good to have an issue for it.

See pop-os/system76-power#197 and pop-os/gnome-control-center#140.

[crawfxrd]

EC firmware should not have knowledge of profiles, only the start/stop values. Default values of a profile can be set in common.mk.

ec/src/board/system76/common/common.mk

Lines 27 to 29 in 76019bd

	# Set battery charging thresholds
	BATTERY_START_THRESHOLD?=0
	BATTERY_END_THRESHOLD?=100

TLP has also added support to System76 Open Firmware, so it should be updated as well if this change is made.

https://github.com/linrunner/TLP/blob/45ca3a6c8cf651eafd75b70dcc67065c6902dcda/bat.d/45-system76#L83-L85