Add missing EN logmessage

src/logmessages_EN.h

@@ -162,6 +162,7 @@ static const char listingDirectory[] PROGMEM = "Listing directory";
 static const char failedToOpenDirectory[] PROGMEM = "Failed to open directory";
 static const char notADirectory[] PROGMEM = "Not a directory";
 static const char sdMountedMmc1BitMode[] PROGMEM = "SD card mounted in SPI-mode configured...";
+static const char sdMountedSpiMode[] PROGMEM = "Mounting SD card in SPI-mode...";
 static const char backupRecoveryWebsite[] PROGMEM = "<p>Backup-file is being applied...<br />Back to <a href=\"javascript:history.back()\">last page</a>.</p>";
 static const char restartWebsite[] PROGMEM = "<p>ESPuino is being restarted...<br />Back to <a href=\"javascript:history.back()\">last page</a>.</p>";
 static const char shutdownWebsite[] PROGMEM = "<p>Der ESPuino is being shutdown...</p>";