solve disparities for ECP_LIGHT between ref/accel

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index da95814..12dcdbc 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -5360,7 +5360,6 @@
 # occasion (to be fixed). If that bug's fixed, the test needs to be altered to use a
 # different means to have the server ignoring the client's supported curve list.
 
-requires_config_enabled MBEDTLS_ECP_C
 run_test    "Authentication: server ECDH p256v1, client required, p256v1 unsupported" \
             "$P_SRV debug_level=1 key_file=data_files/server5.key \
              crt_file=data_files/server5.ku-ka.crt" \
@@ -5370,7 +5369,6 @@
             -c "! Certificate verification flags"\
             -C "bad server certificate (ECDH curve)" # Expect failure at earlier verification stage
 
-requires_config_enabled MBEDTLS_ECP_C
 run_test    "Authentication: server ECDH p256v1, client optional, p256v1 unsupported" \
             "$P_SRV debug_level=1 key_file=data_files/server5.key \
              crt_file=data_files/server5.ku-ka.crt" \
@@ -5748,7 +5746,6 @@
 # occasion (to be fixed). If that bug's fixed, the test needs to be altered to use a
 # different means to have the server ignoring the client's supported curve list.
 
-requires_config_enabled MBEDTLS_ECP_C
 requires_config_enabled MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK
 run_test    "Authentication, CA callback: server ECDH p256v1, client required, p256v1 unsupported" \
             "$P_SRV debug_level=1 key_file=data_files/server5.key \
@@ -5760,10 +5757,9 @@
             -c "! Certificate verification flags" \
             -C "bad server certificate (ECDH curve)" # Expect failure at earlier verification stage
 
-requires_config_enabled MBEDTLS_ECP_C
 requires_config_enabled MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK
 run_test    "Authentication, CA callback: server ECDH p256v1, client optional, p256v1 unsupported" \
-            "$P_SRV debug_level=1 key_file=data_files/server5.key \
+            "$P_SRV debug_level=4 key_file=data_files/server5.key \
              crt_file=data_files/server5.ku-ka.crt" \
             "$P_CLI force_version=tls12 ca_callback=1 debug_level=3 auth_mode=optional curves=secp521r1" \
             1 \