rumpdev: Catch up to buf_syncwait -> vfs_syncwait rename.

Do similarly with a do_sys_sync weak stub so we can drop the rumpvfs
dependency.

no need to call config_init_mi() in rumpdev any more - rump_init() now calls
config_init(), and the sysctl shouldn't be needed

PR kern/55004

Put the kernelside rump kernel headers into <rump-sys> instead of
sprinkling them around the faction directories. Avoids having
to add a CPPFLAGS (or several) to pretty much every component
Makefile

Put the kernelside rump kernel headers into <rump-sys> instead of
sprinkling them around the faction directories. Avoids having
to add a CPPFLAGS (or several) to pretty much every component
Makefile.

Leave compat headers around in the old locations.

The commit changes some autogenerated files, but I'll fix the
generators shortly and regen.

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call config_create_mountrootthreads(), if applicable

provide cpu_bootconf()

use ioconf for mainbus

Make it possible to run component constructors after mainbus attaches,
but before config_finalize() is run.

Remove routines which don't make sense (maybe they're some intermediate
phase of the component framework?)

Don't use __weak_alias where the component framework is sufficient.

split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

__HAVE_DEVICE_REGISTER_POSTCONFIG and __HAVE_DEVICE_REGISTER
are no more, so don't use them here.

Use config pseudo-root keyword instead of monolithic configurations
starting from root.

tweak previous to actually work

pmf wants buf_syncwait() which is a part of optional vfs

Introduce RUMP_COMPONENT. It behaves mostly like a simplified
module which is linked into the kernel and cannot be unloaded.
The main purpose is to get the proper constructors run and create
any /de

Introduce RUMP_COMPONENT. It behaves mostly like a simplified
module which is linked into the kernel and cannot be unloaded.
The main purpose is to get the proper constructors run and create
any /dev nodes necessary for said component. Once more of the
kernel (e.g. networking stack and device drivers) are converted to
MODULE and devfs pops up from somewhere, rump components can be
retired.

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Convert to match current ioconf fashion.

Add sysmon rump component.

Add bpf rump component (and put in some wscons stuff i forgot to earlier).

Add a new optional function device_register_post_config(), symmetric to
device register, called after config is done with a device.
Only used if an arch defines __HAVE_DEVICE_REGISTER_POSTCONFIG.

pmf_init()

Add initial version of RUMP based device-mapper port. libdm compile whole
device-mapper driver in userspace and allows us to test a develop new dm targets
in userspace.

add some stubs required by raidframe linkage

Hold on to your giantlocks while calling device autoconfusion.

add a new init-related calls

Split config_init() into config_init() and config_init_mi() to help
platforms which want to call config_init() very early in the boot.