Use CtsTetheringTest in TEST_MAPPING

This commit updates the TEST_MAPPING to use CtsTetheringTest directly
instead of CtsTetheringTestLatestSdk. Since the *-mainline-prod branch
is no longer used, the latest SDK test is redundant, and
CtsTetheringTest should be used instead.

This commit also move the CtsTetheringTest to presubmit.

Test: TH
Change-Id: I78ef1368e9122c9b69466bb7e295ec38b5d1e829
1 file changed