recovery locale handling fixes

- change locale filename to "last_locale" so the main system doesn't
  delete it

- clean up some chatty logging

- update images with real German (other languages TBD)

Change-Id: I2ebb4ed4e054bd1808a3042d9efbb2c18f3a044d
diff --git a/recovery.cpp b/recovery.cpp
index 70817d3..6ced420 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -63,7 +63,7 @@
 static const char *LOG_FILE = "/cache/recovery/log";
 static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
 static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
-static const char *LOCALE_FILE = "/cache/recovery/locale";
+static const char *LOCALE_FILE = "/cache/recovery/last_locale";
 static const char *CACHE_ROOT = "/cache";
 static const char *SDCARD_ROOT = "/sdcard";
 static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log";