Get ARM64 TARGET information from the registry on Windows #5329

Job	Run time
build (ubuntu-latest, gfortran, cmake)	44m 57s
build (ubuntu-latest, gfortran, make)	21m 10s
cross_build (mips64el, mips64el-linux-gnuabi64, DYNAMIC_ARCH=1 TARGET=GENERIC)	5m 42s
msys2 (UCRT64, int32, Release)	1h 47m 52s
cross_build (riscv64, riscv64-linux-gnu, TARGET=RISCV64_GENERIC)	5m 35s
cross_build (mipsel, mipsel-linux-gnu, TARGET=MIPS1004K)	5m 42s
cross_build (alpha, alpha-linux-gnu, TARGET=EV4)	4m 57s
neoverse_build	7m 32s
build (ubuntu-latest, flang, cmake)	45m 39s
msys2 (UCRT64, int64, Release)	1h 50m 26s
build (ubuntu-latest, flang, make)	19m 48s
msys2 (MINGW32, int32, Release)	1h 9m 26s
msys2 (CLANG64, int32, Release)	1h 8m 28s
build (macos-latest, gfortran, cmake)	30m 26s
msys2 (CLANG64, int64, Release)	1h 6m 43s
build (macos-latest, gfortran, make)	12m 43s
msys2 (UCRT64, int32, None, mingw-w64-ucrt-x86_64, fc)	1h 36m 59s
	12h 4m 5s

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