Merge changes I2cc66423,Ie3044786,Iaf4d47ed,I038fd175 into msm-next

* changes:
  drivers: dma-contiguous: remove cma regions from kmemleak scan
  kmemleak : Make kmemleak_stack_scan optional using config
  defconfig: msm: Enable ARM64_STRICT_BREAK_BEFORE_MAKE flag.
  arm64: mm: allow enforcing of strict break-before-make for page tables