recovery: Don't consider manual install aborts as errors

 * From android-11, recovery warns the user about the danger of
   rebooting after a failed update, but if we didn't even start
   the install procedure it doesn't really make much sense.

Change-Id: Ifaf5eae9fe6e1d915a035e2570c22260de59f99b
diff --git a/recovery.cpp b/recovery.cpp
index 4d6e929..92afa23 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -487,6 +487,9 @@
         if (status == INSTALL_REBOOT) {
           return reboot_action;
         }
+        if (status == INSTALL_NONE) {
+          update_in_progress = false;
+        }
 
         if (status == INSTALL_SUCCESS) {
           update_in_progress = false;