PCI: spear: Reorder struct spear13xx_pcie

Reorder struct spear13xx_pcie to put generic fields first.  No functional
change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/host/pcie-spear13xx.c

@@ -25,10 +25,10 @@
 #include "pcie-designware.h"
 
 struct spear13xx_pcie {
+	struct pcie_port	pp;		/* DT dbi is pp.dbi_base */
 	void __iomem		*app_base;
 	struct phy		*phy;
 	struct clk		*clk;
-	struct pcie_port	pp;
 	bool			is_gen1;
 };