Fix rrules with bad count and interval during parsing

Specifically
If count < 0, assume 1
If interval < 1, assume 1

Bug: 5676414
Change-Id: I942cdaffcfb98a922c5867c9d08be322c64a0f94
2 files changed
tree: 1d26445d9438e128fc05931c36f6aa1104126449
  1. Android.mk
  2. src/
  3. tests/