Add a logo to the fastbootd screen.

fastbootd looks too much like recovery, even if you're carefully reading
the menu. It's not obvious the device is in a flashing mode, and it's
too tempting to reboot or unplug the device in this state.

As a first step, this patch adds a big red "fastbootd" logo so it's less
obviously in recovery mode.

Bug: 120429730
Test: manual test
Change-Id: I73359f1fdfdc0b1694993f760fe7f35c5713b24e
diff --git a/recovery_main.cpp b/recovery_main.cpp
index 6f50802..7fb4616 100644
--- a/recovery_main.cpp
+++ b/recovery_main.cpp
@@ -458,6 +458,8 @@
       }
     }
 
+    ui->SetEnableFastbootdLogo(fastboot);
+
     auto ret = fastboot ? StartFastboot(device, args) : start_recovery(device, args);
 
     if (ret == Device::KEY_INTERRUPTED) {