QCamera2: Restrict preview template to maximum of 30 fps.

Template preview range can now go to a maximum of 30 fps
while video can achieve the full range advertised by
ANDROID_CONTROL_AE_TARGET_FPS_RANGE.

BUG=28705511

Change-Id: Ib836504b23af7c10bf162294d8c5b92ac824b5b4
1 file changed