Pull two arch/nios2 fixes from Ley Foon Tan:
- Remove ucontext.h from exported arch headers
- nios2: mm: do not invoke OOM killer on kernel fault OOM
* tag 'nios2-fixes-v4.0-rc5' of git://git.rocketboards.org/linux-socfpga-next:
nios2: mm: do not invoke OOM killer on kernel fault OOM
nios2: Remove ucontext.h from exported arch headers