Revert "include/linux/pagemap.h : Revert changes from SAMSUNG OSRC SEA KK N7100XXUFND4 Partial Update"

This reverts commit 6c32ea8e3d716ed642aa306a81f3c4a605253206.
Revert "kernel/sched.c : Revert changes from SAMSUNG OSRC SEA KK N7100XXUFND4 Partial Update"

This reverts commit a0cfcf210a0275ceaadf55e841cb0b0390c93410.
Revert "SAMSUNG OSRC SEA KK N7100XXUFND4 Update PART 2"

This reverts commit b4266592a3d1b18ac31c75c6dc7553698f87cb09.
Revert "SAMSUNG OSRC SEA KK N7100XXUFND4 Update"

This reverts commit 02f9dfdbc87918666157300303e2bd7421a902b8.
Revert Newly implemented Linaro optimisations
SAMSUNG OSRC SEA KK N7100XXUFND4 Important Updates
Added v4.2.1 configs
SAMSUNG OSRC SEA KK N7100XXUFND4 Important Updates (N710x)
Rename v4.2.1_R2
Revert: Revert "SAMSUNG OSRC SEA KK N7100XXUFND4 Update"
Revert "Revert "SAMSUNG OSRC SEA KK N7100XXUFND4 Update PART 2""
Rename v4.2.1_R3