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

Improve U-Boot API detection

Until now, ubldr has been trying to locate the U-Boot API using a hint
address (U-Boot's current stack pointer), aligning it to 1MiB and going
over a 3MiB (or 1MiB in case of MIPS) memory region searching for a
valid API signature.

This change introduces an alternative way of doing this, namely the
following:
- both U-Boot's bootelf and go commands actually pass argc and argv to
the entry point (e.g., ubldr's start function, but they should also
be passed over to main() transparently)
- so, instead of trying to go and look for a valid API signature, we
look at the parameters passed to main()
- if there's an option '-a' with argument, which is a valid hexadecimal
unsigned long number (x), we try to verify whether we have a valid
API signature at address x. If so - we use it. If not - we fallback
to the original way of locating the API signature.

The U-Boot change, which causes the API structure address to be
exported as an environment variable, was committed to mainline U-Boot
as commit 22aa61f707574dd569296f521fcfc46a05f51c48

Reviewed by: andrew, adrian
Approved by: adrian (mentor)
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D5492

These changes attempt to put things in order before the introduction of MIPS
ubldr.

The changes are mostly dealing with removing unnecessary casts from the U-Boot
API (we're passing only pointers, no obvious reason to cast them to uint32_t),
cleaning up some compiler warnings and using the proper printf format
specifiers in order to be able to compile cleanly for both 32-bit and 64-bit
MIPS targets.

Reviewed by: imp
Approved by: adrian (mentor)
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D5312

Fix fdt_platform_fixups() mem region handling. It turns out u-boot puts
several types of data into the mem-info array (DRAM, SRAM, flash). We
need to extract just the DRAM entries for translation into fdt memory
properties.

Also, increase the number of regions we can handle from 5 to 16.

Submitted by: Michal Meloun

Initial storage functionality for U-Boot support library.

- Only non-sliced bsdlabel style partitioning is currently supported (but provisions
are made towards GPT support, which should follow soon)
- Enable storage support in loader on ARM

Obtained from: Semihalf

Minor style(9) fixes for U-Boot API glue.

U-Boot API glue improvements:

- extend ub_dev_read() and ub_dev_recv() so that the actual len and
all error codes can be passed and processed properly; unify behaviour of
these routines

- introduce syscall general error code (API_ESYSC)

Improve loader support for U-Boot.

- add new diag commands: devinfo, sysinfo for U-Boot-style details about the system
configuration
- better memory info summary
- style corrections

Obtained from: Semihalf

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.