msm8660-common: reduce the haptic on the virtual keys

Change-Id: Ic3b5801e8dc76de11fa4b4b697324b35ab62215e
msm8660: Enable TARGET_DISPLAY_INSECURE_MM_HEAP

 * Ancient userspace :(
 * Also remove the OLD_ION flag, it's not necessary at all.

Change-Id: I2d42d11c927784727e94c19d7c7177e9b71e3563
Merge "msm8660-common: reduce the haptic on the virtual keys" into cm-10.2