ci: Add -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION to asan build

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from openssl#16433)

.github/workflows/ci.yml

@@ -130,7 +130,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: config
-      run: ./config --banner=Configured --debug enable-asan enable-ubsan enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-fips && perl configdata.pm --dump
+      run: ./config --banner=Configured --debug enable-asan enable-ubsan enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-fips -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION && perl configdata.pm --dump
     - name: make
       run: make -s -j4
     - name: make test