PHPC-1496: Fix Windows build for libmongocrypt crypto

This fixes a typo from 7cea21a

Author: jmikola

config.w32

@@ -260,7 +260,7 @@ if (PHP_MONGODB != "no") {
     var PHP_MONGODB_MONGOCRYPT_KMS_MESSAGE_SOURCES="hexlify.c kms_b64.c kms_caller_identity_request.c kms_crypto_apple.c kms_crypto_libcrypto.c kms_crypto_none.c kms_crypto_windows.c kms_decrypt_request.c kms_encrypt_request.c kms_kv_list.c kms_message.c kms_request.c kms_request_opt.c kms_request_str.c kms_response.c kms_response_parser.c sort.c";
 
     ADD_SOURCES(configure_module_dirname + "/src/libmongocrypt/src", PHP_MONGODB_MONGOCRYPT_SOURCES, "mongodb");
-    ADD_SOURCES(configure_module_dirname + "/src/libmongocrypt/src/crypto", PHP_MONGODB_MONGOCRYPT_SOURCES, "mongodb");
+    ADD_SOURCES(configure_module_dirname + "/src/libmongocrypt/src/crypto", PHP_MONGODB_MONGOCRYPT_CRYPTO_SOURCES, "mongodb");
     ADD_SOURCES(configure_module_dirname + "/src/libmongocrypt/src/os_posix", PHP_MONGODB_MONGOCRYPT_OS_POSIX_SOURCES, "mongodb");
     ADD_SOURCES(configure_module_dirname + "/src/libmongocrypt/src/os_win", PHP_MONGODB_MONGOCRYPT_OS_WIN_SOURCES, "mongodb");
     ADD_SOURCES(configure_module_dirname + "/src/libmongocrypt/kms-message/src", PHP_MONGODB_MONGOCRYPT_KMS_MESSAGE_SOURCES, "mongodb");