verilator: Add pic_static_library to output files

[hovind]

This turns

$ bazelisk-linux-amd64 cquery --output=files '//hardware:rv32_verilator'
INFO: Analyzed target //hardware:rv32_verilator (0 packages loaded, 0 targets configured).
INFO: Found 1 target...
INFO: Elapsed time: 0.091s, Critical Path: 0.00s
INFO: 0 processes.
INFO: Build completed successfully, 0 total actions

into

$ bazelisk-linux-amd64 cquery --output=files '//hardware:rv32_verilator'
INFO: Analyzed target //hardware:rv32_verilator (6 packages loaded, 1150 targets configured).
INFO: Found 1 target...
bazel-out/k8-fastbuild/bin/hardware/librv32_verilator.a
INFO: Elapsed time: 1.237s, Critical Path: 0.00s
INFO: 0 processes.
INFO: Build completed successfully, 0 total actions

for me.

[QuantamHD]

/gcbrun