contrib: run test-symbol check for RISCV

Now that we are using Focal for Gitian building (glibc 2.31), we can
user a newer introduced  symbol, and include RISCV in this test.

ci/test/00_setup_env_native_multiprocess.sh

@@ -13,3 +13,4 @@ export DEP_OPTS="MULTIPROCESS=1"
 export GOAL="install"
 export BITCOIN_CONFIG="--with-boost-process"
 export TEST_RUNNER_ENV="BITCOIND=bitcoin-node"
+export RUN_SECURITY_TESTS="true"

ci/test/00_setup_env_native_qt5.sh

@@ -11,7 +11,6 @@ export DOCKER_NAME_TAG=ubuntu:18.04  # Check that bionic gcc-7 can compile our c
 export PACKAGES="python3-zmq qtbase5-dev qttools5-dev-tools libdbus-1-dev libharfbuzz-dev"
 export DEP_OPTS="NO_QT=1 NO_UPNP=1 NO_NATPMP=1 DEBUG=1 ALLOW_HOST_PACKAGES=1"
 export TEST_RUNNER_EXTRA="--previous-releases --coverage --extended --exclude feature_dbcrash"  # Run extended tests so that coverage does not fail, but exclude the very slow dbcrash
-export RUN_SECURITY_TESTS="true"
 export RUN_UNIT_TESTS_SEQUENTIAL="true"
 export RUN_UNIT_TESTS="false"
 export GOAL="install"