Re-add everest test, as it was mislabelled

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
diff --git a/tests/scripts/components-configuration-crypto.sh b/tests/scripts/components-configuration-crypto.sh
index fcca5ff..05c4806 100644
--- a/tests/scripts/components-configuration-crypto.sh
+++ b/tests/scripts/components-configuration-crypto.sh
@@ -430,6 +430,29 @@
     tests/compat.sh -f ECDH -V NO -e 'ARIA\|CAMELLIA\|CHACHA'
 }
 
+component_test_everest_curve25519_only () {
+    msg "build: Everest ECDH context, only Curve25519" # ~ 6 min
+    scripts/config.py set MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED
+    scripts/config.py unset MBEDTLS_ECDSA_C
+    scripts/config.py -c $CRYPTO_CONFIG_H unset PSA_WANT_ALG_DETERMINISTIC_ECDSA
+    scripts/config.py -c $CRYPTO_CONFIG_H unset PSA_WANT_ALG_ECDSA
+    scripts/config.py -c $CRYPTO_CONFIG_H set PSA_WANT_ALG_ECDH
+    scripts/config.py unset MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
+    scripts/config.py unset MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
+    scripts/config.py unset MBEDTLS_ECJPAKE_C
+    scripts/config.py -c $CRYPTO_CONFIG_H unset PSA_WANT_ALG_JPAKE
+
+    # Disable all curves
+    scripts/config.py unset-all "MBEDTLS_ECP_DP_[0-9A-Z_a-z]*_ENABLED"
+    scripts/config.py -c $CRYPTO_CONFIG_H unset-all "PSA_WANT_ECC_[0-9A-Z_a-z]*$"
+    scripts/config.py -c $CRYPTO_CONFIG_H set PSA_WANT_ECC_MONTGOMERY_255
+
+    make CC=$ASAN_CC CFLAGS="$ASAN_CFLAGS" LDFLAGS="$ASAN_CFLAGS"
+
+    msg "test: Everest ECDH context, only Curve25519" # ~ 50s
+    make test
+}
+
 component_test_psa_collect_statuses () {
   msg "build+test: psa_collect_statuses" # ~30s
   scripts/config.py full