cpufeatures: relax XSAVE checks #735

Job	Run time
build (1.60.0, armv7a-none-eabi)	1m 40s
cross (aarch64-unknown-linux-gnu, 1.60.0)	2m 13s
build (1.60.0, thumbv7em-none-eabi)	1m 41s
cross (aarch64-unknown-linux-gnu, stable)	44s
build (1.60.0, wasm32-unknown-unknown)	1m 39s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.60.0, sudo apt update && sudo apt install gcc-mult...	1m 53s
cross (powerpc-unknown-linux-gnu, 1.60.0)	2m 8s
build (stable, armv7a-none-eabi)	10s
test (i686-unknown-linux-gnu, ubuntu-latest, stable, sudo apt update && sudo apt install gcc-mult...	26s
cross (powerpc-unknown-linux-gnu, stable)	41s
build (stable, thumbv7em-none-eabi)	16s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.60.0)	1m 41s
build (stable, wasm32-unknown-unknown)	9s
test (x86_64-unknown-linux-gnu, ubuntu-latest, stable)	5s
test (x86_64-apple-darwin, macos-latest, 1.60.0)	1m 43s
x86 (x86_64-unknown-linux-gnu, 1.72.0)	21s
test (x86_64-apple-darwin, macos-latest, stable)	15s
x86 (x86_64-unknown-linux-gnu, stable)	13s
test (x86_64-pc-windows-msvc, windows-latest, 1.60.0)	2m 15s
test (x86_64-pc-windows-msvc, windows-latest, stable)	1m 21s
minimal-versions / minimal-versions	53s
	22m 27s

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