[hardware] Add fpnew control status registers #1206

Job	Run time
check-opcodes	2s
riscv-isa-sim	4m 0s
tc-gcc	1m 42s
tc-llvm	1h 24m 55s
verilator	17s
verilator-model (minpool)	5m 28s
verilator-model (mempool)	11m 43s
build-apps-gcc (minpool)	37s
build-apps-gcc (mempool)	31s
check-bootrom	22s
build-apps-omp (minpool)	37s
build-apps-omp (mempool)	38s
unit-test	2m 49s
run-apps-gcc	0s
tc-halide	1m 8s
build-apps-llvm (minpool)	1m 31s
build-apps-llvm (mempool)	1m 12s
build-apps-halide	0s
run-apps-halide	0s
run-apps-llvm (minpool)	35s
run-apps-llvm (mempool)	3m 13s
clean-up	2s
clean-up-compile-runs (minpool)	3s
clean-up-compile-runs (mempool)	2s
	2h 1m 27s

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