pci: pci-uclass: Fix incorrect argument in map_physmem

Fix argument ordering for map_physmem() called in dm_pci_map_ea_bar().
Additinally minor spelling correction.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>