* boards/arm/stm32/b-g474e-dpow1/configs/ostest/defconfig:
New file. Compared to b-g474e-dpow1:nsh, it adds the following
configs:
+CONFIG_BUILTIN=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_TESTING_OSTEST=y
and, because ostest currently fails when priority inheritance is
enabled, it removes the following configs:
-CONFIG_PRIORITY_INHERITANCE=y
-CONFIG_PTHREAD_MUTEX_DEFAULT_PRIO_INHERIT=y