defconfig: msm: Disable core control helper

Core control helper is not needed anymore with subsequent patches
that moves core control into the kernel.

Change-Id: I2c62af441fb9e5ba9f29719853a63e4c8f2d031b
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>