Update Android to tzdata 2018a/b/c

This commit contains changes associated with
2018a, 2018b and 2018c.

From the release announcement:

Release 2018c - 2018-01-22 23:00:44 -0800
Release 2018b - 2018-01-17 23:24:48 -0800
Release 2018a - 2018-01-12 22:29:21 -0800

  Briefly:
  São Tomé and Príncipe switched from +00 to +01.
  Brazil's DST will now start on November's first Sunday.
  Use Debian-style installation locations, instead of 4.3BSD-style.
  New zic option -t.

  Changes to past and future time stamps

    São Tomé and Príncipe switched from +00 to +01 on 2018-01-01 at
    01:00.  (Thanks to Steffen Thorsen and Michael Deckers.)

  Changes to future time stamps

    Starting in 2018 southern Brazil will begin DST on November's
    first Sunday instead of October's third Sunday. (Thanks to
    Steffen Thorsen.)

  Changes to past time stamps

    Japanese DST transitions (1948-1951) were Sundays at 00:00, not
    Saturdays or Sundays at 02:00.  (Thanks to Takayuki Nikai.)

    A discrepancy of 4 s in timestamps before 1931 in South Sudan has
    been corrected.  The 'backzone' and 'zone.tab' files did not agree
    with the 'africa' and 'zone1970.tab' files.  (Problem reported by
    Michael Deckers.)

    The abbreviation invented for Bolivia Summer Time (1931-2) is now
    BST instead of BOST, to be more consistent with the convention
    used for Latvian Summer Time (1918-9) and for British Summer Time.

Bug: 72057587
Test: CTS: run -m CtsLibcoreTestCases
Test: CTS: run -m CtsLibcoreOjTestCases
Test: CTS: run -m CtsBionicTestCases
				`

Change-Id: I3e4705b97899e8e049cc78b2e3c23d5d513e8c47