Makefile: do not create a symbolic link to arch/${ARCH}/include/asm

In-tree build:
  - Do not create a symbolic link
      from include/asm to arch/${ARCH}/include/asm
  - Add ${SRCTREE}/arch/arm/include into the header search path

Out-of-tree build:
  - Do not create a directory ${OBJTREE}/include2
  - Do not create a symbolic link
      from ${OBJTREE}/include2/asm to ${SRCTREE}/arch/${ARCH}/include/asm
  - Add ${SRCTREE}/arch/arm/include into the header search path

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/mkconfig b/mkconfig
index 1d06c8e..40db991 100755
--- a/mkconfig
+++ b/mkconfig
@@ -96,17 +96,11 @@
 #
 if [ "$SRCTREE" != "$OBJTREE" ] ; then
 	mkdir -p ${OBJTREE}/include
-	mkdir -p ${OBJTREE}/include2
-	cd ${OBJTREE}/include2
-	rm -f asm
-	ln -s ${SRCTREE}/arch/${arch}/include/asm asm
 	LNPREFIX=${SRCTREE}/arch/${arch}/include/asm/
-	cd ../include
+	cd ${OBJTREE}/include
 	mkdir -p asm
 else
-	cd ./include
-	rm -f asm
-	ln -s ../arch/${arch}/include/asm asm
+	cd arch/${arch}/include
 fi
 
 rm -f asm/arch
@@ -122,6 +116,10 @@
 	ln -s ${LNPREFIX}proc-armv asm/proc
 fi
 
+if [ "$SRCTREE" = "$OBJTREE" ] ; then
+	cd ${SRCTREE}/include
+fi
+
 #
 # Create include file for Make
 #