kbuild,scripts: use non-builtin echo for '-e'

Alek reported that on Ubuntu, where dash is used, 'echo -e'
can't work, so let's use non-builtin echo in this case.
Reported-by: Alek Du <alek.du@intel.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

scripts/Kbuild.include

@@ -100,7 +100,7 @@ as-option = $(call try-run,\
 # Usage: cflags-y += $(call as-instr,instr,option1,option2)
 
 as-instr = $(call try-run,\
-	echo -e "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
+	/bin/echo -e "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
 
 # cc-option
 # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)

scripts/checkkconfigsymbols.sh

@@ -9,7 +9,7 @@ paths="$@"
 # Doing this once at the beginning saves a lot of time, on a cache-hot tree.
 Kconfigs="`find . -name 'Kconfig' -o -name 'Kconfig*[^~]'`"
 
-echo -e "File list \tundefined symbol used"
+/bin/echo -e "File list \tundefined symbol used"
 find $paths -name '*.[chS]' -o -name 'Makefile' -o -name 'Makefile*[^~]'| while read i
 do
 	# Output the bare Kconfig variable and the filename; the _MODULE part at
@@ -54,6 +54,6 @@ while read symb files; do
 	# beyond the purpose of this script.
 	symb_bare=`echo $symb | sed -e 's/_MODULE//'`
 	if ! grep -q "\<$symb_bare\>" $Kconfigs; then
-		echo -e "$files: \t$symb"
+		/bin/echo -e "$files: \t$symb"
 	fi
 done|sort