m68k: allow ColdFire PCI bus on MMU and non-MMU configuration

Up to now we have only had support for the PCI bus when running the
ColdFire CPU family with the MMU enabled. The only reason for this was
the incomplete state of the IO remapping and access functions when
running with the MMU disabled.

Recent fixes and improvements to the ColdFire IO access code means we
can now support the PCI bus when running non-MMU enabled as well.
So modify the configuration support to allow it to be selected no matter
what choice of MMU mode is used.
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Reviewed-by: Angelo Dureghello <angelo@sysam.it>
Tested-by: Angelo Dureghello <angelo@sysam.it>

arch/m68k/Kconfig.bus

@@ -59,6 +59,10 @@ config ATARI_ROM_ISA
 config GENERIC_ISA_DMA
 	def_bool ISA
 
+source "drivers/zorro/Kconfig"
+
+endif
+
 config PCI
 	bool "PCI support"
 	depends on M54xx
@@ -66,10 +70,8 @@ config PCI
 	  Enable the PCI bus. Support for the PCI bus hardware built into the
 	  ColdFire 547x and 548x processors.
 
+if PCI
 source "drivers/pci/Kconfig"
-
-source "drivers/zorro/Kconfig"
-
 endif
 
 if !MMU