Revert "dmtimer: fix clock set when matching parent"

This reverts commit b67d0cbdb230382d536e820d7fe6e62c6c0adec2.

Change-Id: Ib3af12440237a09563559f30c9bd23233f910745
Revert "defconfig: update for backlight changes"

This reverts commit c3e948c3c773b0704f96943736822067f60a2f10.

Change-Id: Iabf4b75635a7a259d20fd33cecd3323a17df3c61