Increase EIO retry count

am: c37c5c3

Change-Id: I163541137bf8c421276383855d36ab127d2ddf95

recovery.cpp

@@ -105,7 +105,8 @@ static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install";
 static const char *LAST_KMSG_FILE = "/cache/recovery/last_kmsg";
 static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
 static const int KEEP_LOG_COUNT = 10;
-static const int EIO_RETRY_COUNT = 2;
+// We will try to apply the update package 5 times at most in case of an I/O error.
+static const int EIO_RETRY_COUNT = 4;
 static const int BATTERY_READ_TIMEOUT_IN_SEC = 10;
 // GmsCore enters recovery mode to install package when having enough battery
 // percentage. Normally, the threshold is 40% without charger and 20% with charger.