[nrf fromlist] tests: net: wifi: Add a test for Enterprise with run-time certs

This is needed to ensure run-time certs feature builds.

Upstream PR #: 87656

Signed-off-by: Chaitanya Tata <[email protected]>
(cherry picked from commit 85d8e9a)

Author: krish2718

tests/net/wifi/configs/testcase.yaml

@@ -56,3 +56,8 @@ tests:
   wifi.build.disable_advanced_feat:
     extra_configs:
       - CONFIG_WIFI_NM_WPA_SUPPLICANT_ADVANCED_FEATURES=y
+  wifi.build.enterprise_runtime:
+    extra_configs:
+      - CONFIG_WIFI_SHELL_RUNTIME_CERTIFICATES=y
+    extra_args:
+      - SNIPPET="wifi-enterprise"