tests: drivers: bbram: add nucleo_g071rb as an integration platform

Add the nucleo_g071rb board as an integration platform to the bbram
test.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

Author: aurel32

tests/drivers/bbram/testcase.yaml

@@ -21,9 +21,11 @@ tests:
     extra_args: OVERLAY_CONFIG="stm32.conf"
     filter: dt_compat_enabled("st,stm32-bbram")
     integration_platforms:
+      - nucleo_g071rb
       - stm32f746g_disco
   drivers.bbram.stm32_rtc:
     extra_args: OVERLAY_CONFIG="stm32_rtc.conf"
     filter: dt_compat_enabled("st,stm32-bbram")
     integration_platforms:
+      - nucleo_g071rb
       - stm32f746g_disco