Bump OS versions in the toolchain triples to 11.0, and bump the
__FreeBSD_cc_version predefined macros in clang and gcc.

Approved by:	re (gjb)
Fixed the media type shown via ifconfig.
Fixed a panic that occurs when bringing up an interface on 57710/57711
running very old bootcode versions.
Fixed how bool is defined for those who have been using this code on older
versions of FreeBSD.

Approved by:    re@ (gjb)
Approved by:    davidch (mentor)