tests: sensor: generic: Set thread priorities for back-to-back readings

In order to support back-to-back readings, it's required that the
RTIO workq threads priority is higher than the caller issuing the
back-to-back requests, otherwise the requests will fail as P4WQ won't
have the opportunity to clear the is_done semaphore, and the subsequent
request will be rejected.

Signed-off-by: Luis Ubieda <[email protected]>

Author: ubieda

tests/drivers/build_all/sensor/testcase.yaml

@@ -34,6 +34,7 @@ tests:
     extra_configs:
       - CONFIG_GENERIC_SENSOR_TEST=y
       - CONFIG_ZTEST=y
+      - CONFIG_ZTEST_THREAD_PRIORITY=1
       - CONFIG_EMUL=y
       - CONFIG_NATIVE_UART_0_ON_STDINOUT=y
       - CONFIG_SENSOR_ASYNC_API=y