pci/fsl_pci_init: Use PCIe capability to determine if controller is PCIe

Change the code to use the PCIe capabilities register to determine if we
are a PCIe controller or not.  Additionally cleaned up some white space
and formatting in the file.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/pci.h b/include/pci.h
index aaa4554..491f814 100644
--- a/include/pci.h
+++ b/include/pci.h
@@ -222,6 +222,7 @@
 #define  PCI_CAP_ID_SLOTID	0x04	/* Slot Identification */
 #define  PCI_CAP_ID_MSI		0x05	/* Message Signalled Interrupts */
 #define  PCI_CAP_ID_CHSWP	0x06	/* CompactPCI HotSwap */
+#define  PCI_CAP_ID_EXP 	0x10	/* PCI Express */
 #define PCI_CAP_LIST_NEXT	1	/* Next capability in the list */
 #define PCI_CAP_FLAGS		2	/* Capability defined flags (16 bits) */
 #define PCI_CAP_SIZEOF		4