change stm32lib submodule to our folk for now for flexibility

.gitmodules

@@ -9,7 +9,7 @@
 	url = https://github.com/ThrowTheSwitch/Unity.git
 [submodule "hw/mcu/st/stm32lib"]
 	path = hw/mcu/st/stm32lib
-	url = https://github.com/micropython/stm32lib.git
+	url = https://github.com/hathach/stm32lib.git
 [submodule "hw/mcu/nxp/lpcopen"]
 	path = hw/mcu/nxp/lpcopen
 	url = https://github.com/hathach/lpcopen.git

hw/mcu/st/stm32lib

@@ -1 +1 @@
-Subproject commit 39ad71f97bcf2c4b553ffc4343032cce4299c6ef
+Subproject commit 1dabc2df8ed1acaf0c483b58d757ba72e8b42090