fix mbedtls build

Signed-off-by: Jack Lau <jacklau1222gm@gmail.com>

Author: JackLau1222

.github/workflows/test.yml

@@ -689,7 +689,7 @@ jobs:
           PKG_CONFIG_PATH="$HOME/.release/mbedtls/lib/pkgconfig" \
             ./configure --enable-muxer=whip --enable-mbedtls --enable-version3 \
             --extra-cflags="-I$HOME/.release/mbedtls/include" \
-            --extra-ldflags="-L$HOME/.release/mbedtls/lib -Wl,-rpath,$HOME/.release/mbedtls/lib"
+            --extra-ldflags="-L$HOME/.release/mbedtls/lib -lmbedtls -lmbedx509 -lmbedcrypto -Wl,-rpath,$HOME/.release/mbedtls/lib"
           make -j$(nproc)
           ./ffmpeg -version && ./ffmpeg -muxers 2>/dev/null |grep whip
       - name: Start SRS Docker container