sha2: Add inline-asm backend for LoongArch64 targets #848

Job	Run time
loongarch64_asm	20s
cross (1.51.0, aarch64-unknown-linux-gnu, default)	3m 50s
test-msrv	3m 31s
cross (1.51.0, powerpc-unknown-linux-gnu, default)	3m 48s
cross (stable, aarch64-unknown-linux-gnu, default)	51s
cross (stable, powerpc-unknown-linux-gnu, default)	1m 8s
minimal-versions / minimal-versions	2m 24s
set-msrv / set-msrv	5s
linux (x86_64-unknown-linux-gnu, 1.57.0)	6m 12s
linux (x86_64-unknown-linux-gnu, stable)	2m 49s
build (1.57.0, thumbv7em-none-eabi)	3m 25s
build (1.57.0, wasm32-unknown-unknown)	3m 27s
build (stable, thumbv7em-none-eabi)	31s
macos (1.57.0)	4m 14s
macos (stable)	2m 58s
build (stable, wasm32-unknown-unknown)	28s
windows (x86_64-pc-windows-gnu, stable)	1m 18s
	41m 19s

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