CI: Add Zba, Zbb, Zbc, and Zbs tests to CI pipeline

Add tests for the Zba, Zbb, Zbc, and Zbs extensions to the CI pipeline,
ensuring that these extensions are validated automatically during
continuous integration.

Author: visitorckw

.ci/riscv-tests.sh

@@ -19,3 +19,4 @@ make ENABLE_EXT_M=1 ENABLE_EXT_A=1 ENABLE_EXT_F=1 ENABLE_EXT_C=1 \
      ENABLE_Zicsr=1 ENABLE_Zifencei=1 ENABLE_FULL4G=1
 make arch-test RISCV_DEVICE=IMAFCZicsrZifencei || exit 1
 make arch-test RISCV_DEVICE=FCZicsr || exit 1
+make arch-test RISCV_DEVICE=IMZbaZbbZbcZbs || exit 1