tree fdcd5d938e628799ab474d6f7a7d0039459e1dfb
parent 7df92b88d20d780be6f23b4f5458a1faab31d48c
author Leonid Lobachev <leonidl@google.com> 1556655811 -0700
committer Alex Van Damme <atv@google.com> 1557855281 -0700

Enable UART3 which is connected to 40pin header.

Enable UART3 and properly configure pinmux settings
for TX/RX pins.

Bug: 131176938, 131178416

Change-Id: I0bf5da18298d26ea5d7215d3cd581a9cc7d047a7
Signed-off-by: Leonid Lobachev <leonidl@google.com>