UART0 RX only needs to be disabled on reef. This change uses a system
property instead of a #define to disable UART0 RX that way it can just
be done on Reef not Gru or the dev board.
BUG=chrome-os-partner:55510
BRANCH=none
TEST=manual
rw 0x4060000c shows a value of 1 for reef and 3 for gru
gru kevin and reef still boot.
Connect DIOA13 to DIOA1 on the dev board and verify the console
can be used.
Change-Id: I5ee3559c2b35f959c0d67f233d1dfa40743b4064
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/378336
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Scott Collyer <scollyer@chromium.org>