Update defconfig.common

Author: Jason2866

configs/defconfig.common

@@ -164,7 +164,7 @@ CONFIG_MBEDTLS_AES_C=y
 # CONFIG_MBEDTLS_X509_CSR_PARSE_C is not set
 # end of Certificates
 
-CONFIG_MBEDTLS_ECP_C=y
+# CONFIG_MBEDTLS_ECP_C is not set
 # CONFIG_MBEDTLS_DHM_C is not set
 # CONFIG_MBEDTLS_ECDH_C is not set
 # CONFIG_MBEDTLS_ECDSA_C is not set