update u-boot patch

guowenxue

2020-08-21 e33d5cbc798eace1baf4d6e6343873da6001a66b

 3rdparty/openssl/build.sh

@@ -64,6 +64,7 @@
    PACK_SUFIX=tar.gz 

    if [ -f ${PREFIX_PATH}/lib/libcrypto.a ] ; then 
        msg_banner "$SRC_NAME already compile and installed"
        return 0;
    fi