postinst hardcodes sse4.1 check even on non-Intel arches

[lambdageek]

linux-packaging-mono/debian/postinst-monoaot

Lines 13 to 17 in 1efa58c

	if [ -z "$HASSSE41" ]
	then
	TRYLLVM=""
	LLVMNOTE=" (LLVM disabled due to missing SSE4.1)"
	fi

AFAIK, we check for SSE4.1 and disable AOT even on non-Intel arches (e.g. ARM64).

[lambdageek]

See mono/mono#12182 (comment)