ARM: defconfig: Enable config for msm8937

Changed CONFIG_LKDTM from y to m to locate lkdtm.ko file on the device.

Change-Id: I653a8e92887ca5c96ac7f027d70771d9927f6e5f
Signed-off-by: Prakash Yadachi <quic_pyadachi@quicinc.com>