storage: fix MD vs MV confusion

Change-Id: If0e4b0ac8b24413b77f1d67293c652c6a0e01bbd
diff --git a/firmware/export/sd.h b/firmware/export/sd.h
index a5942dd..9ae3313 100644
--- a/firmware/export/sd.h
+++ b/firmware/export/sd.h
@@ -51,8 +51,8 @@
 void sd_get_info(IF_MD(int drive,) struct storage_info *info);
 #endif
 #ifdef HAVE_HOTSWAP
-bool sd_removable(IF_MV_NONVOID(int drive));
-bool sd_present(IF_MV_NONVOID(int drive));
+bool sd_removable(IF_MD_NONVOID(int drive));
+bool sd_present(IF_MD_NONVOID(int drive));
 #endif
 
 long sd_last_disk_activity(void);