Increase AVDD on witherspoon

Per request of power team, adding an AVDD override to
our power on sequence

Resolves openbmc/openbmc#2112

Change-Id: I82478e6f3eb30a108c4e7332369d36568e425315
Signed-off-by: Andrew Geissler <andrewg@us.ibm.com>
1 file changed