serrano: Enable ZSL in camera app again

Change-Id: I6b5b2699a7d5fe51710b2fe33cf0ef6d48504558

Conflicts:
	overlay/packages/apps/Camera2/res/values/config.xml
serrano: Enable denoise by default

Change-Id: I19f8fd1e8be23f15ed3b43bcdc1884689e952c87

Conflicts:
	overlay/packages/apps/Camera2/res/values/qcomstrings.xml