Revert "mach-exynos: Missing Makefile definitions for the previous commit"

This reverts commit 41a457bc0e30c72603a8b66d61f98afde4fa2578.
Revert "mach-exynos: added ifdef to PLUSSEC if it isnt present it won't build on GCC 4.4"

This reverts commit 3adf5f91f4351a7c2b4564f8ecb053d93b250bb8.