[PATCH] ARCH detection for ppc

I'm not sure why ppc is converted to powerpc, it breaks at least $(ARCH)
in klibc.

gcc -dumpmachine
powerpc-suse-linux

Makefile

@@ -64,7 +64,7 @@ export CROSS CC AR STRIP RANLIB
 
 # code taken from uClibc to determine the current arch
 ARCH := ${shell $(CC) -dumpmachine | sed -e s'/-.*//' -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \
-	-e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g'}
+	-e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/powerpc/ppc/g'}
 
 # code taken from uClibc to determine the gcc include dir
 GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}