defconfig: msm: Enable configs for msm8996 auto CV2X target

Enable ATL1C for ethernet driver, DEVMEM for debugging memory
mapped registers and PPS for the pulse per second driver.

Change-Id: I169a2f34b352008bd6c4d72111c53cdcdf16e566
Signed-off-by: Gustavo Solaira <gustavos@codeaurora.org>