powerpc/85xx: Handle PCIe initialization requires for P1021 class SoCs

The P1011, P1012, P1015, P1016, P1020, P1021, P1024, & P1025 SoCs require
that we initialize the SERDES registers if the lanes are configured for
PCIe.  Additionally these devices PCIe controller do not support ASPM
and we have to explicitly disable it.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/pci.h b/include/pci.h
index c6b264b..1284c42 100644
--- a/include/pci.h
+++ b/include/pci.h
@@ -306,6 +306,7 @@
 #define PCI_DCR		0x54    /* PCIe Device Control Register */
 #define PCI_DSR		0x56    /* PCIe Device Status Register */
 #define PCI_LSR		0x5e    /* PCIe Link Status Register */
+#define PCI_LCR		0x5c    /* PCIe Link Control Register */
 #define PCI_LTSSM	0x404   /* PCIe Link Training, Status State Machine */
 #define  PCI_LTSSM_L0	0x16    /* L0 state */