picassowifi: defconfig: Disable Samsung's input boosting

Change-Id: Ibaa8f68b1461454de2f9e7bb90a7e72bf0d759de
picassowifi: cpu-boost: Disable sync migration

This isn't useful for us and it allocates a kthread that we
really don't need to be around.  Let's just get rid of all of
this.

Change-Id: Ic0561ab4b07463be3a637443be8deb9b85cfd816