Activate PEG clock-gating only if all PEG devices are disabled.
Fixes system hang when trying to access PEG registers.
Test system:
* Intel Pentium CPU G2130
* Gigabyte GA-B75M-D3H
Change-Id: I7d62fbb83c16741965639cea1a0e4978d4e3d6da
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/11059
Tested-by: build bot (Jenkins)
3660c0fc65