- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC 273927:

Move the definitions of the fdt functions from a uboot header to a new fdt
header. There is nothing in the fdt spec that ties it to U-Boot.

While here sort and fix the signature of fdt_setup_fdtp.

MFC 273934:

Start to allow platforms other than U-Boot to use the FDT code in loader by
moving U-Boot specific code from libfdt.a to a new libuboot_fdt.a. This
needs to be a new library for linking to work correctly.

Differential Revision: https://reviews.freebsd.org/D1054
Reviewed by: ian, rpaulo (earlier version)

MFC r262664, r262694:

Prevent fdt data loaded from a file from overwriting the kernel environment,
by having uboot_autoload() do the fdt setup (which may load a file) rather
than waiting until we're actually in the process of launching the kernel.

As part of making this happen...
- Define LOADER_FDT_SUPPORT on the uboot/lib compile command line when
MK_FDT is set.
- Make fdt_setup_fdtb() public.
- Declare public fdt_whatever() functions in a header instead of using
scattered extern decls in .c files.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Build disk.c only when DISK_SUPPORT is enabled.

Use the common/shared CRC-32 implementation instead of duplicating it.

MFC after: 1 week

MF tbemd: Minor tweaks, prefer MACHINE_CPUARCH generally to MACHINE_ARCH (which simplifies some powerpc/powerpc64 ifs)

Initial loader(8) support for Flattened Device Tree.

o This is disabled by default for now, and can be enabled using WITH_FDT at
build time.

o Tested with ARM and PowerPC.

Reviewed by: imp
Sponsored by: The FreeBSD Foundation

Move U-Boot compatibility library to WARNS=2 level.

style(9) & style.Makefile(9)

Reviewed by: raj

o Build libuboot with -msoft-float like everything else.
o Move the API prototypes to a separate header (glue.h)
o Allow the platform to hint libuboot about where to look
for the API signature. The uboot_address variable is
expected to be defined by the platform.

MFp4 (e500):

Add support for U-Boot. This uses the U-Boot API as developed by
Rafal and which is (will be) part of U-Boot 1.3.2 and later.

Credits to: raj@