[POWERPC] Create common fsl pci/e files based on 86xx platforms

Move
arch/powerpc/platforms/86xx/pci.c -> arch/powerpc/sysdev/fsl_pci.c
arch/powerpc/sysdev/fsl_pcie.h -> arch/powerpc/sysdev/fsl_pci.h
as the base to unify 83xx/85xx/86xx pci and pcie.

Add CONFIG_FSL_PCI to build fsl_pci.c for Freescale pci and pcie option.
The code still works for 86xx platforms.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 0faebfd..d1c8115 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -14,8 +14,8 @@
 
 config MPC8641
 	bool
-	select PPC_INDIRECT_PCI
-	select PPC_INDIRECT_PCI_BE
+	select PPC_INDIRECT_PCI_BE if PCI
+	select FSL_PCI if PCI
 	select PPC_UDBG_16550
 	select MPIC
 	default y if MPC8641_HPCN