test esys-pcr-basic: fix platform auth management

When it is not possible to use Platform authorization,
a 'goto error' is missing to skip the test

Signed-off-by: lcharpentier-stm <laurent.charpentier@st.com>

test/integration/esys-pcr-basic.int.c

@@ -142,6 +142,7 @@ test_esys_pcr_basic(ESYS_CONTEXT * esys_context)
         /* Platform authorization not possible test will be skipped */
         LOG_WARNING("Platform authorization not possible.");
         failure_return =  EXIT_SKIP;
+        goto error;
     }
 
     goto_if_error(r, "Error: PCR_Allocate", error);