PCIE2 and PCIE3 are decided by corresponing bit in devdisr instead of PCIE1 bit

PCIE2 and PCIE3 should be decided by corresponing bit in devdisr instead of
PCIE1 bit.
On MPC8572DS board, PCIE refers to PCIE1.
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>

board/freescale/mpc8572ds/mpc8572ds.c

@@ -170,7 +170,7 @@ void pci_init_board(void)
 		struct pci_region *r = hose->regions;
 		u32 temp32;
 
-		if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
+		if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)){
 			printf ("\n    PCIE3 connected to ULI as %s (base address %x)",
 					pcie_ep ? "End Point" : "Root Complex",
 					(uint)pci);
@@ -237,7 +237,7 @@ void pci_init_board(void)
 		int pcie_configured  = (io_sel == 0x3) || (io_sel == 0x7);
 		struct pci_region *r = hose->regions;
 
-		if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
+		if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)){
 			printf ("\n    PCIE2 connected to Slot 1 as %s (base address %x)",
 					pcie_ep ? "End Point" : "Root Complex",
 					(uint)pci);