- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r260401

Remove aicasm as a build dependency. It made sense when the ahc and ahd
drivers and their firmware were under active development, but those days
have passed. The firmware now exists in pre-compiled form, no longer
dependent on it's sources or on aicasm. If you wish to rebuild the
firmware from source, the glue still exists under the 'make firmware'
target in sys/modules/aic7xxx.

This also fixes the problem introduced with r257777 et al with building
kernels the old fashioned way in sys/$arch/compile/$CONFIG when the
ahc/ahd drivers were included.

MFC r257637, r257730, r257734, r257777, r257825, r257838, r257873:

Changes to how the aicasm tool is built. This series of changes results
in the aicasm tool being built as part of the tools stages of world and
kernel builds.

Most of these changes will ultimately be undone when r260401 is MFC'd,
but it will leave in place the new kernel-build-tool machinery (KTMAKE
stuff) in case a new special kernel tool ever comes along.

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

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

Disable -Wconstant-conversion warnings for the aic7xxx module in a more
fine-grained way: only add the option for the specific .c files that
need them, like via sys/conf/files.

MFC after: 1 week

Amend r228779 by also disabling -Wconstant-conversion warnings for the
aic7xxx module.

MFC after: 1 week

Add WERRROR= to work around the warnings

Curlies only work in target and sources specifications, but
not when passed to Bourne shell. This unbreaks "make clean".

Update GENSRCS and aicasm options correctly depending on whether register
pretty printing is enabled

Add a dependency on the source files for aicasm so that it will be rebuilt
if out of date.

Simplify.

Hook the aic7xxx modules up. This requires some extra care since aicasm
is a compiler tool and needs to be compiled by the host compiler. I've
tested this in i386->sparc cross-build, 4.7->current upgrade, normal
buildkernel target, and normal /sys/i386/compile/GENERIC configurations.

Submitted by: ru

Complete the hookup of ahd/ahc module building.

Allow the ahc and ahd drivers to be built as modules. This also
breaks the ahc driver into a core back-end and pci and eisa
front-ends.