bcm53xx: image: don't suppress "mv" command echoing

We call all commands normally, with standard echoing. It's useful for
debugging with V=s. Don't make lzma compression an exception, it's a bit
confusing this way.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

target/linux/bcm53xx/image/Makefile

@@ -19,7 +19,7 @@ endef
 
 define Build/lzma-d16
 	$(STAGING_DIR_HOST)/bin/lzma e $@ -d16 $(1) $@.new
-	@mv $@.new $@
+	mv $@.new $@
 endef
 
 define Build/trx-serial