VenueNameElement: fix off-by-one enum bounds check

Fix the off-by-one error in the conditionals that check
whether the Venue Group and Venue Type codes in the ANQP
element are in the "Reserved" range.

BUG: 30169673
BUG: 29464811
TEST: Manually set up AP with Hotspot 2.0 support, broadcasting
      Venue Group value 0xc, and ensure that device does not
      crash when in range of this AP.

Change-Id: I14adc3a919e19b67fc0f46bf09d0cffb88b5354e
(cherry picked from commit 48ee5f1e1c6e2a2dc63e9cb84c42f532c8a6847a)
