init.*.rc: insmod wl12xx_sdio module

In previous commit in otter-common we removed framework insertion settings.
Let's manually insert the wl12xx_sdio module during boot up.

Change-Id: If71771c3884d3617b77f5fae99b5af6c2a368710
init.*.rc: remove CPU downclock setting

Especially since there aren't any overclock settings in AOSP/CM atm.

Change-Id: Icc802068f5b3960453a8784244e508d8508bd092