Enable incremental scans for interval checks

Currently tests that check for incremental scan interval
range-checking have incremental scans disabled.
This CL turns on incremental scans for tests where the
invalid interval range checks are being validated.

Bug: 112486807
Test: atest RadioHidlTest_v1_2#startNetworkScan_InvalidPeriodicity1;
      atest RadioHidlTest_v1_2#startNetworkScan_InvalidPeriodicity2;
Change-Id: I94874f538d2df70a72913b489d9298f8d1cf9b56