Revert "Remove the PERFORMANCE_PROFILE in Settings.System"

This reverts commit 4b53a960eb2aa2a84bf574a1fba0a13bac4bc318.

Change-Id: Ifea17b41443c214e7a79280bd84d75ce7caf8d57
Revert "perf: Improve performance profiles"

This reverts commit 061f8841d64a5aa472dc1f9c846cf9498aac294c.

Change-Id: Iac26090de6a1866851f8d1cedc714148319864e9

Conflicts:
	core/res/res/values/config.xml

Change-Id: Iac26090de6a1866851f8d1cedc714148319864e9

Conflicts:
	core/res/res/values/symbols.xml