libhdmi: add placeholders and update for hwcomposer compatibility

Change-Id: I592230db0d39527591981200fb7174d3926e9bbe

Conflicts:
	exynos4/hal/include/sec_utils.h
libHWCService: initial commit for hwcomposer dependency

This is just a placeholder dependency required for the HWC to run.

Change-Id: Icbfe8c0dde86e10400332f374ae27bcd9e22ae95
libIPService: initial commit for hwcomposer dependency

This is just a placeholder dependency required for the HWC to run.

Change-Id: I4ef9782c0d18157ef923057f12c89494bbd110c6
exynos4: include support for proprietary HWComposer

Change-Id: I6803d274d5c9a132853b26eaf2cb4206645c3f55
samsung: include TARGET_HAL_PATH makefile

Change-Id: Ifd17d6e0504ba8a2809f12940cfb74b1d386eb61

Conflicts:
	exynos4x12.mk