FreeBSD_HEAD_i386 - Build #1804 - Fixed

FreeBSD_HEAD_i386 - Build #1804 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/1804/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/1804/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/1804/console

Change summaries:

291492 by mmel:
ARM: create new memory attribute for writethrough cacheable memory.
- add new TEX class for WT cacheable memory
- export new TEX class to kernel as VM_MEMATTR_WT attribute
- add new aliases VM_MEMATTR_WRITE_COMBINING and
  VM_MEMATTR_WRITE_BACK, it's used in DRM code

Note:
 Only Cortex A8 supports WT caching in HW. On rest of Cortex CPUs,
 WT requests is treated as uncacheable.

Approved by:	kib (mentor)

291491 by ngie:
Fix the build after ifconfig was converted over to lib80211 in r291470

Reported by: jenkins, O. Hartmann <ohartman_at_zedat.fu-berlin.de>
Pointyhat to: adrian