Don't depend on @ or machine for assym.s or genassym.o. That's a
vestige of a time when we needed to do that, but it is all handled by
beforedepend now. When we depend on the symlink, bmake will cause the
file to be rebuilt always.

With this change, dtrace.ko doesn't rebuild every time through a
KERNFAST run.

Sponsored by: Netfix
move linux*_locore.s and linux*_support.s to SRCS, remove the OBJS
entry and remove now-redunant dependencies. Add assym.s to
linux*_locore.s build, as it depends on it.

With this change, linux*.ko no longer builds every time through a
KERNFAST run.

Sponsored by: Netflix
Add provider's sectorsize and stripesize to confdot output.

Submitted by:	rpokala at panasas.com
After r273087,r273090,r273091,r273121 changes to gif(4) try to fix
NOIP builds for real.

MFC after:	27 days
- Fix lladdr configuration which could prevent LACP mode from working.
- Fix LORs when a laggport interface has an IPv6 LLA.

PR:	194321
Add -x waittime and -X timeout options for feature parity.  These are
equivalent to -W and -t options of ping(8).  Different letters are used
because both have already been used for another purposes in ping6(8).