cpufreq: allow for low CPU clock policy when hotplugging new cores

* Also fix brace derp from previous

Change-Id: I628eac9b66d6af5fb1bd90477dc0e9ce490810e9
Signed-off-by: faux123 <reioux@gmail.com>
d2: Update defconfigs

Change-Id: Iabe35d8ddfbf9be1126f6e8bfa386f01e1eebaa4
Signed-off-by: bmc08gt <bmc08gt.teamb00sted@gmail.com>