linux-imx

PCI: imx: set up the hsio regmap itself

Setup PCI its own HSIO regmap to fix the kernel dump, when the HSIO
regmap is set as system syscon.
/sys/kernel/debug/regmap# cat dummy-hsio@5f080000/register

NOTE: devm_ioremap is used to get the virtual address, because that the
devm_ioremap_resource would return -EBUSY when there is a resource
overlap between different HSIO consumers.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>