update_kernel: don't log about not copying firmware

We don't copy /lib/firmware by default now, so the messages here are
backward. Don't log anything if we're not doing anything.

BUG=none
TEST=none

Change-Id: Id7e12900c0779907c38791aac4e2f401a6d9296f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/1552539
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
diff --git a/update_kernel.sh b/update_kernel.sh
index 5df7962..9df714c 100755
--- a/update_kernel.sh
+++ b/update_kernel.sh
@@ -302,11 +302,9 @@
     copy_kernelmodules "${remote_basedir}"
 
     if [[ ${FLAGS_firmware} -eq ${FLAGS_TRUE} ]]; then
-      echo "copying firmware"
+      echo "copying firmware (per request)"
       remote_send_to /build/"${FLAGS_board}"/lib/firmware/ \
                      "${remote_basedir}"/lib/firmware/
-    else
-      info "Skipping update of firmware (per request)."
     fi
     if [[ ${REMOTE_NEEDS_ROOTFS_MOUNTED} -eq ${FLAGS_TRUE} ]]; then
       remote_sh umount "${remote_basedir}"