test_suite_ssl: update description for conf_curve and conf_gruop tests

These tests are about EC curves/groups, not DH ones, so the description
should be updated accordingly.

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/tests/scripts/analyze_outcomes.py b/tests/scripts/analyze_outcomes.py
index 35a1eb2..301bfc4 100755
--- a/tests/scripts/analyze_outcomes.py
+++ b/tests/scripts/analyze_outcomes.py
@@ -412,7 +412,7 @@
         ],
         'test_suite_ssl': [
             # This deprecated function is only present when ECP_C is On.
-            'Test configuration of groups for DHE through mbedtls_ssl_conf_curves()',
+            'Test configuration of EC groups through mbedtls_ssl_conf_curves()',
         ],
     }
 
@@ -452,7 +452,7 @@
         ],
         # See ecp_light_only
         'test_suite_ssl': [
-            'Test configuration of groups for DHE through mbedtls_ssl_conf_curves()',
+            'Test configuration of EC groups through mbedtls_ssl_conf_curves()',
         ],
     }
 
@@ -499,7 +499,7 @@
         ],
         # See ecp_light_only
         'test_suite_ssl': [
-            'Test configuration of groups for DHE through mbedtls_ssl_conf_curves()',
+            'Test configuration of EC groups through mbedtls_ssl_conf_curves()',
         ],
     }
 
@@ -554,7 +554,7 @@
         ],
         # See ecp_light_only
         'test_suite_ssl': [
-            'Test configuration of groups for DHE through mbedtls_ssl_conf_curves()',
+            'Test configuration of EC groups through mbedtls_ssl_conf_curves()',
         ],
     }