Fix broken path

Author: cajt

examples/stm32f401_discovery/gyroscope/project.xml

@@ -1,7 +1,7 @@
 <library>
   <extends>modm:disco-f401vc</extends>
   <options>
-    <option name="modm:build:build.path">../../../build/nucleo_l432kc/gyroscope</option>
+    <option name="modm:build:build.path">../../../build/stm32f401_discovery/gyroscope</option>
   </options>
   <modules>
     <module>modm:driver:l3gd20</module>