defconfig: mdm-perf: Enable Kernel Thermal Monitor driver

Enable Kernel Thermal Monitor(KTM) driver for mdm-perf defconfig.

Change-Id: I22c794824c60b0b3b45a408a9d1dab074261739e
Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>