Merge tag 'nios2-fixes-v3.19' of git://git.rocketboards.org/linux-socfpga-next

Pull arch/nios2 fixes from Ley Foon Tan:
 - add definition of ioremap_wc to io.h to fix build error from make
   allmodconfig
 - fix make defconfig
 - fix sparse error

* tag 'nios2-fixes-v3.19' of git://git.rocketboards.org/linux-socfpga-next:
  nios2/uaccess: fix sparse errors
  nios2: enable "make defconfig"
  nios2: add definition of ioremap_wc to io.h