Grab Giant around calls to DEVICE_SUSPEND/RESUME in acpi_SetSleepState(). If we are resuming non-MPSAFE drivers, they need Giant held for them. This may fix some obscure suspend/resume problems.  It has fixed keyrate setting problems that were triggered by cardbus (MPSAFE) changing the ordering for syscons resume (non-MPSAFE).  Also, add some asserts that Giant is held in our suspend/resume and shutdown methods.
Grab Giant around calls to DEVICE_SUSPEND/RESUME in acpi_SetSleepState().
If we are resuming non-MPSAFE drivers, they need Giant held for them.
This may fix some obscure suspend/resume problems.  It has fixed keyrate
setting problems that were triggered by cardbus (MPSAFE) changing the
ordering for syscons resume (non-MPSAFE).  Also, add some asserts that
Giant is held in our suspend/resume and shutdown methods.

Found by:	iedowse
MFC after:	2 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase