eSlick driver: Fix swapped drives in windows

src/calibre/devices/eslick/driver.py

@@ -36,4 +36,12 @@ class ESLICK(USBMS):
 
     SUPPORTS_SUB_DIRS = True
 
+    def windows_sort_drives(self, drives):
+        main = drives.get('main', None)
+        card = drives.get('carda', None)
+        if card and main and card < main:
+            drives['main'] = card
+            drives['carda'] = main
+
+        return drives