Add the avx10.2nvl-x{4,8,16,32,64} x86 target family for Intel Nova Lake
(NVL). NVL implements AVX10.2 but, unlike Diamond Rapids (DMR), has no AMX.
It is therefore modeled as "DMR without AMX": its target hierarchy inherits
from ICL (avx512icl) rather than DMR/GNR, and none of the AMX capabilities
(AmxTile/AmxInt8/AmxBf16/AmxFp16) are advertised. The half-precision
rcp/rsqrt builtins are reused from the shared target-avx512fp16-x*-common.ll
files. The targets require LLVM >= 22 and are gated accordingly throughout.
Arina Neshlyaeva
4bfe359a35