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

Rework BCM283x gpio interrupt controller for INTRNG. It's used on RPI-B
and RPI2 where INTRNG is already enabled by default.

Differential Revision: https://reviews.freebsd.org/D5810

Raspberry Pi firmware passes cache line size as a DTB parameter

- Add cache-line-size paramter to vchiq node
- Add cache_line_size DTB parameter referencing to
.../vchiq/cache-line-size property

Set the #address-cells and #size-cells properties on I2C controllers of
Raspberry-pi.

This fixes the issues of dtc(1) while compiling I2C addresses set in "reg"
property.

MFC after: 2 weeks

Integrate device-tree upstream files into the build process:
(1) Invoke cpp to bring in files via #include (although the old
/include/ stuff is supported still).
(2) bring in files from either vendor tree or freebsd-custom files
when building.
(3) move all dts* files from sys/boot/fdt/dts to
sys/boot/fdt/dts/${MACHINE} as appropriate.
(4) encode all the magic to do the build in sys/tools/fdt/make_dtb.sh
so that the different places in the tree use the exact same logic.
(5) switch back to gpl dtc by default. the bsdl one in the tree has
significant issues not easily addressed by those unfamiliar with
the code.

Add the Raspberry Pi SPI controller driver.

Reviewed by: rpaulo
Approved by: adrian (mentor)

Add the Raspberry Pi BSC (I2C compliant) controller driver.

Reviewed by: rpaulo
Approved by: adrian (mentor)

Split bcm2835-rpi-b.dts into bcm2835.dtsi and rpi.dts. This DTS actually works
on all R-Pi models because VideoCore binary patches it during boot.

Reviewed by: gonzo