Migrate pmem deprecated API to the new one

This patch permit to migrate deprecated functions pmem_kalloc and pmem_kfree to the new API.

Migration is done for : 
tzcom
qdsp6
msm/vidc

This patch revert the emulation of deprecated pmem_kalloc and pmem_kfree on the memory.c and android_pmem.h files.

ZRAM support : patch zram to run on arm architecture + enable on defconfig