SD Card control on Mbed os5

Please refer following my Notebook page.
/users/kenjiArai/notebook/sd-card-control-new/#

Revision:
3:4d7be22641c1
Parent:
2:c88e7695167e
Child:
4:6d6ea85642ed
--- a/mbed-os.lib	Tue Jun 04 11:25:49 2019 +0000
+++ b/mbed-os.lib	Sat Aug 17 03:29:11 2019 +0000
@@ -1,1 +1,1 @@
-https://github.com/ARMmbed/mbed-os/#73f096399b4cda1f780b140c87afad9446047432
+https://github.com/ARMmbed/mbed-os/#808c45062f940790e1287bd6b8420290c062775c