powerpc/85xx & 86xx: Rework ft_fsl_pci_setup to not require aliases

Previously we used an alias the pci node to determine which node to
fixup or delete.  Now we use the new fdt_node_offset_by_compat_reg to
find the node to update.

Additionally, we replace the code in each board with a single macro call
that makes assumes uniform naming and reduces duplication in this area.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/mpc8572ds/mpc8572ds.c b/board/freescale/mpc8572ds/mpc8572ds.c
index 81d481a..6b96dfc 100644
--- a/board/freescale/mpc8572ds/mpc8572ds.c
+++ b/board/freescale/mpc8572ds/mpc8572ds.c
@@ -345,15 +345,8 @@
 
 	fdt_fixup_memory(blob, (u64)base, (u64)size);
 
-#ifdef CONFIG_PCIE3
-	ft_fsl_pci_setup(blob, "pci0", &pcie3_hose);
-#endif
-#ifdef CONFIG_PCIE2
-	ft_fsl_pci_setup(blob, "pci1", &pcie2_hose);
-#endif
-#ifdef CONFIG_PCIE1
-	ft_fsl_pci_setup(blob, "pci2", &pcie1_hose);
-#endif
+	FT_FSL_PCI_SETUP;
+
 #ifdef CONFIG_FSL_SGMII_RISER
 	fsl_sgmii_riser_fdt_fixup(blob);
 #endif