Fix typo. Update MCP73833 diagnostic print

Author: PaulZC

Firmware/RTK_Everywhere/Display.ino

@@ -2388,7 +2388,7 @@ void paintSystemTest()
 
             oled->setFont(QW_FONT_5X7);        // Set font to smallest
 
-            if (present.microSD)
+            if (present.microSd)
             {
                 oled->setCursor(xOffset, yOffset); // x, y
                 oled->print("SD:");

Firmware/RTK_Everywhere/System.ino

@@ -98,7 +98,7 @@ void updateBattery()
                                        ((uint8_t)readAnalogPinAsDigital(pin_chargerLED));
                 systemPrint("MCP73833 Charger: ");
                 if (combinedStat == 3)
-                    systemPrintln("standby / fault");
+                    systemPrintln("standby");
                 else if (combinedStat == 2)
                     systemPrintln("battery is charging");
                 else if (combinedStat == 1)