When building with AARCH64 defconfig, we got warnings, fix them by using registers base address defined as void __iomem * instead of fdt_addr_t. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>