K 10
svn:author
V 8
jchandra
K 8
svn:date
V 27
2017-02-26T22:05:22.881754Z
K 7
svn:log
V 272
Enable pl011 UART FIFOs

The pl011 UART has a 16 entry Tx FIFO and a 16 entry Rx FIFO that
have not been used so far. Update the driver to enable the FIFOs
and use them in transmit and receive.

Reviewed by:	andrew
Differential Revision:	https://reviews.freebsd.org/D8819

END