With the XHCI controller enabled we no longer hang the
system when dropping into a package C-state so remove
the code that was disabling it.
Change-Id: Icd60488fd2506dac04fb6ec96a77bec265b10d8c
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/50355
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4163
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>