Fix extraction-width warnings #955

Job	Run time
riscv-arch-test	0s
jtag-dtm-test (freechips.rocketchip.system.WithJtagDTMSystem_freechips.rocketchip.system.DefaultC...	21m 31s
riscv-tests (DefaultConfig)	19m 20s
jtag-dtm-test (freechips.rocketchip.system.WithJtagDTMSystem_freechips.rocketchip.system.DefaultR...	19m 44s
emulator (DefaultSmallConfig)	13m 20s
riscv-tests (DefaultBufferlessConfig)	19m 6s
jtag-dtm-test (freechips.rocketchip.system.WithJtagDTMSystem_freechips.rocketchip.system.WithDebu...	18m 31s
riscv-tests (DefaultRV32Config)	19m 17s
emulator (DualBankConfig)	13m 19s
jtag-dtm-test (freechips.rocketchip.system.WithJtagDTMSystem_freechips.rocketchip.system.WithDebu...	17m 13s
riscv-tests (TinyConfig)	13m 57s
emulator (DualChannelConfig)	13m 26s
riscv-tests (DefaultFP16Config)	14m 25s
emulator (DualChannelDualBankConfig)	13m 43s
emulator (RoccExampleConfig)	14m 2s
emulator (Edge128BitConfig)	14m 33s
emulator (Edge32BitConfig)	13m 26s
emulator (QuadChannelBenchmarkConfig)	14m 16s
emulator (EightChannelConfig)	13m 36s
emulator (DualCoreConfig)	14m 42s
emulator (MemPortOnlyConfig)	13m 15s
emulator (MMIOPortOnlyConfig)	13m 1s
emulator (CloneTileConfig)	15m 28s
emulator (HypervisorConfig)	14m 21s
	5h 57m 32s

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