Change ioremap_nocache to ioremap.

ioremap defaults to ioremap_nocache since 2.6 and latter is removed in
5.6 kernel.
See https://github.com/torvalds/linux/commit/4bdc0d676a643140bdf17dbf7eafedee3d496a3c

Change-Id: Ifd9ff9db5937abf487d57861465cd58b4df18ac3
1 file changed