Add omap version to Makefile and force CROSS_COMPILE

Adds omap kernel version to Makefile and forces CROSS_COMPILE.
Signed-off-by: Tony Lindgren <tony@atomide.com>

Makefile

@@ -10,6 +10,9 @@ NAME=Woozy Numbat
 # Comments in this file are targeted only to the developer, do not
 # expect to learn how to build the kernel reading this file.
 
+# Add custom flags here to avoid conflict with updates
+EXTRAVERSION := $(EXTRAVERSION)-omap1
+
 # Do not print "Entering directory ..."
 MAKEFLAGS += --no-print-directory
 
@@ -167,9 +170,11 @@ KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(LOCALVERSION)
 # then ARCH is assigned, getting whatever value it gets normally, and 
 # SUBARCH is subsequently ignored.
 
+SUBARCH := arm
 SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 				  -e s/arm.*/arm/ -e s/sa110/arm/ \
 				  -e s/s390x/s390/ -e s/parisc64/parisc/ )
+SUBARCH := arm
 
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------
@@ -191,7 +196,7 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
 
 ARCH		?= $(SUBARCH)
-CROSS_COMPILE	?=
+CROSS_COMPILE	?= arm-linux-
 
 # Architecture as present in compile.h
 UTS_MACHINE := $(ARCH)