kbuild: use KECHO convenience echo

Convert a few echos in the build system to new $(kecho) so we get correct
output according to build verbosity.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
[sam: added kecho in a few more places for O=... builds]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/Makefile b/Makefile
index 3075586..3a6ac68 100644
--- a/Makefile
+++ b/Makefile
@@ -926,7 +926,7 @@
 # 2) Create the include2 directory, used for the second asm symlink
 prepare3: include/config/kernel.release
 ifneq ($(KBUILD_SRC),)
-	@echo '  Using $(srctree) as source for kernel'
+	@$(kecho) '  Using $(srctree) as source for kernel'
 	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
 		echo "  $(srctree) is not clean, please run 'make mrproper'";\
 		echo "  in the '$(srctree)' directory.";\
@@ -983,7 +983,7 @@
 # directory for generated filesas used by some architectures.
 define create-symlink
 	if [ ! -L include/asm ]; then                                      \
-			echo '  SYMLINK $@ -> include/asm-$(SRCARCH)';     \
+			$(kecho) '  SYMLINK $@ -> include/asm-$(SRCARCH)'; \
 			if [ ! -d include/asm-$(SRCARCH) ]; then           \
 				mkdir -p include/asm-$(SRCARCH);           \
 			fi;                                                \
@@ -1096,7 +1096,7 @@
 PHONY += modules
 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
 	$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
-	@echo '  Building modules, stage 2.';
+	@$(kecho) '  Building modules, stage 2.';
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
 
@@ -1360,7 +1360,7 @@
 	$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
 
 modules: $(module-dirs)
-	@echo '  Building modules, stage 2.';
+	@$(kecho) '  Building modules, stage 2.';
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
 
 PHONY += modules_install