m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabled

The ColdFire 547x and 548x CPUs have internal MMU hardware. All code
to support this is now in, so we can build kernels with it enabled.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NMatt Waddel <mwaddel@yahoo.com>
Acked-by: NKurt Mahan <kmahan@xmission.com>

arch/m68k/Kconfig.cpu

@@ -236,8 +236,8 @@ config M54xx
 
 config M547x
 	bool "MCF547x"
-	depends on !MMU
 	select M54xx
+	select MMU_COLDFIRE if MMU
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
 	help
@@ -245,7 +245,7 @@ config M547x
 
 config M548x
 	bool "MCF548x"
-	depends on !MMU
+	select MMU_COLDFIRE if MMU
 	select M54xx
 	select HAVE_CACHE_CB
 	select HAVE_MBAR