WifiLogger: use R for ring buffer sizing

Use Resources to determine ring-buffer sizing.
This is to support board-specific ring-buffer
sizes.

BUG=29225988
TEST=unit tests
TEST=manual

Manual test (bullhead): Added some Log.e() statements,
and verified that RING_BUFFER_BYTE_LIMIT_SMALL and
RING_BUFFER_BYTE_LIMIT_LARGE were 32KB and 1024KB,
respectively.

Change-Id: I25ee7d871609c4ebe186424bfdd324a8283f43e3
(cherry picked from commit eacd212af097fada70bdb49da3ed06e8d172237b)
4 files changed
tree: 3a133cfa9f88f558ad5705f085f9ab2661606807
  1. service/
  2. tests/