ppc4xx: Make 440SPe PCIe code more generic to use on different 4xx PPCs (2)

This patch is the first patch of a series to make the 440SPe PCIe code
usable on different 4xx PPC platforms. In preperation for the new 405EX
which is also equipped with PCIe interfaces.

(2) This patch renames the functions from 440spe_ to 4xx_ with a
    little additional cleanup

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/include/asm-ppc/4xx_pcie.h b/include/asm-ppc/4xx_pcie.h
index 38745eb..220c60c 100644
--- a/include/asm-ppc/4xx_pcie.h
+++ b/include/asm-ppc/4xx_pcie.h
@@ -9,8 +9,8 @@
  */
 
 #include <ppc4xx.h>
-#ifndef __440SPE_PCIE_H
-#define __440SPE_PCIE_H
+#ifndef __4XX_PCIE_H
+#define __4XX_PCIE_H
 
 #define mdelay(n) ({unsigned long __ms=(n); while (__ms--) udelay(1000);})
 
@@ -164,11 +164,10 @@
 
 #define GPL_DMER_MASK_DISA	0x02000000
 
-int ppc440spe_init_pcie(void);
-int ppc440spe_init_pcie_rootport(int port);
-void yucca_setup_pcie_fpga_rootpoint(int port);
-void ppc440spe_setup_pcie_rootpoint(struct pci_controller *hose, int port);
-int ppc440spe_setup_pcie_endpoint(struct pci_controller *hose, int port);
-int yucca_pcie_card_present(int port);
+int ppc4xx_init_pcie(void);
+int ppc4xx_init_pcie_rootport(int port);
+void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port);
+int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port);
 int pcie_hose_scan(struct pci_controller *hose, int bus);
-#endif /* __440SPE_PCIE_H */
+
+#endif /* __4XX_PCIE_H */