tests: pm: power_mgmt_soc: Enable tests on Renesas RA boards

Enable SoC power management on these Renesas RA boards.
- ek_ra8m1
- ek_ra8d1
- mck_ra8t1
- ek_ra8p1/r7ka8p1kflcac/cm85

Signed-off-by: Khoa Tran <[email protected]>

Author: khoatranyj

tests/subsys/pm/power_mgmt_soc/testcase.yaml

@@ -21,6 +21,10 @@ tests:
       - max32657evkit/max32657
       - max32657evkit/max32657/ns
       - imx95_evk/mimx9596/m7
+      - ek_ra8m1
+      - ek_ra8d1
+      - mck_ra8t1
+      - ek_ra8p1/r7ka8p1kflcac/cm85
     tags: pm
     integration_platforms:
       - mec15xxevb_assy6853