samples: enable build only test for nxp_adsp_imx8m

Test openamp_rsc_table sample also for nxp_adsp_imx8m.

Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>

samples/subsys/ipc/openamp_rsc_table/sample.yaml

@@ -1,11 +1,14 @@
 sample:
   description: This app provides an example of how to integrate OpenAMP
-    with Zephyr in cluding a esource table.
+    with Zephyr including a resource table.
   name: OpenAMP with resource table example integration
 tests:
   sample.subsys.ipc.openamp_rs_table:
     build_only: true
-    platform_allow: stm32mp157c_dk2
+    platform_allow:
+      - stm32mp157c_dk2
+      - nxp_adsp_imx8m
     integration_platforms:
       - stm32mp157c_dk2
+      - nxp_adsp_imx8m
     tags: ipm