samples: ipm_esp32: do not skip CI test

This sample was skipped during hwmv2 bring up. Turn in back on.

Signed-off-by: Sylvio Alves <[email protected]>

Author: sylvioalves

samples/drivers/ipm/ipm_esp32/sample.yaml

@@ -8,4 +8,3 @@ tests:
     tags:
       - samples
       - ipm
-    skip: true