Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Configure the peripheral pins for MCI devices. Eliminate the now-unused
at91_pio_rm9200.h.

Create common routines for configuring the serial ports and use them
on all the at91rm9200 boards.

For our at91rm9200 boards, register which subtype of SoC is on the
board. We'll use this later to control the differences between these
two variants' pins.