Settings: Modify AOSP JA translation

usage_type_on_time is supposed to the cell standby use time(使用時間),
but it says screen use time(点灯時間) in Japanese. It should be corrected.

Change-Id: Ic9b7f61a054d09cf7944d6d37f70c8dbb294c095
NFC Polling Mode (2/3)

Change-Id: I0e17ded93e9b82095e6bf8301c268017c49dd12b
Signed-off-by: Jubakuba <Jubakuba@gmail.com>

Conflicts:

	res/values-cs/strings_custom.xml
	res/values/strings_custom.xml