msm7630: Do not initialize LCDC for MDDI devices

By default LCDC splash screen support is enabled for 7x30
targets. 7x30 FFAs have MDDI display, due to this display
issues are seen on MDDI devices during bootup.This fix avoids
LCDC initialization for MDDI devices.

CRs-Fixed: 339467
Change-Id: Idca4269605a34d835a70a1e8bc1669a24f5a6f13
3 files changed