[software] Load vector type in f16 complex matmul #1223

Job	Run time
check-opcodes	6s
tc-llvm	1h 23m 39s
tc-gcc	2m 5s
riscv-isa-sim	10s
verilator	10s
verilator-model (minpool)	12s
verilator-model (mempool)	25s
build-apps-gcc (minpool)	1m 7s
unit-test	2m 35s
build-apps-gcc (mempool)	1m 0s
build-apps-omp (minpool)	31s
check-bootrom	23s
build-apps-omp (mempool)	38s
run-apps-gcc (minpool)	29s
run-apps-gcc (mempool)	3m 8s
tc-halide	47s
build-apps-llvm (minpool)	1m 23s
build-apps-llvm (mempool)	1m 19s
build-apps-halide	0s
run-apps-halide	0s
run-apps-llvm	0s
clean-up-compile-runs (minpool)	2s
clean-up	2s
clean-up-compile-runs (mempool)	2s
	1h 40m 13s

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