samples: boards: st: power_mgmt: blinky: Enable NUCLEO-C071RB

Enables the NUCLEO-C071RB board to the blinky sample to be run by twister.

Signed-off-by: Tomáš Juřena <[email protected]>

Author: jurenat

samples/boards/st/power_mgmt/blinky/sample.yaml

@@ -18,3 +18,4 @@ tests:
     integration_platforms:
       - nucleo_wb55rg
       - nucleo_f429zi
+      - nucleo_c071rb