m68knommu: modify Makefiles to support common coldfire directory

Modify Makefiles to support separate coldfire platform directory.

Currently the common ColdFire CPU family code sits in the
arch/m68knommu/platform/5307 directory. This is confusing, the files
containing this common code are in no way specific to the 5307 ColdFire.
Create an arch/m68knommu/platform/coldfire directory to contain this
common code. Other m68knommu CPU varients do not need use this code
though, so it doesn't make sense to move it to arch/m68knommu/kernel.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/m68knommu/Makefile b/arch/m68knommu/Makefile
index 30aa255..e0b5f62 100644
--- a/arch/m68knommu/Makefile
+++ b/arch/m68knommu/Makefile
@@ -61,17 +61,17 @@
 # for the selected cpu. ONLY need to define this for the non-base member
 # of the family.
 #
-cpuclass-$(CONFIG_M5206)	:= 5307
-cpuclass-$(CONFIG_M5206e)	:= 5307
-cpuclass-$(CONFIG_M520x)	:= 5307
-cpuclass-$(CONFIG_M523x)	:= 5307
-cpuclass-$(CONFIG_M5249)	:= 5307
-cpuclass-$(CONFIG_M527x)	:= 5307
-cpuclass-$(CONFIG_M5272)	:= 5307
-cpuclass-$(CONFIG_M528x)	:= 5307
-cpuclass-$(CONFIG_M5307)	:= 5307
-cpuclass-$(CONFIG_M532x)	:= 5307
-cpuclass-$(CONFIG_M5407)	:= 5307
+cpuclass-$(CONFIG_M5206)	:= coldfire
+cpuclass-$(CONFIG_M5206e)	:= coldfire
+cpuclass-$(CONFIG_M520x)	:= coldfire
+cpuclass-$(CONFIG_M523x)	:= coldfire
+cpuclass-$(CONFIG_M5249)	:= coldfire
+cpuclass-$(CONFIG_M527x)	:= coldfire
+cpuclass-$(CONFIG_M5272)	:= coldfire
+cpuclass-$(CONFIG_M528x)	:= coldfire
+cpuclass-$(CONFIG_M5307)	:= coldfire
+cpuclass-$(CONFIG_M532x)	:= coldfire
+cpuclass-$(CONFIG_M5407)	:= coldfire
 cpuclass-$(CONFIG_M68328)	:= 68328
 cpuclass-$(CONFIG_M68EZ328)	:= 68328
 cpuclass-$(CONFIG_M68VZ328)	:= 68328