LLVM 18: R_X86_64_32S relocation is used for medium model (--size-level=1)

[yamt]

with the recent version of LLVM, wamrc --size-level=1 often generates R_X86_64_32S relocations.
it's bad because we suggest --size-level=1 to avoid that kind of relocations.

wasm-micro-runtime/core/iwasm/aot/arch/aot_reloc_x86_64.c

Lines 196 to 201 in bb053e3

	snprintf(buf, sizeof(buf),
	"AOT module load failed: "
	"relocation truncated to fit %s failed. "
	"Try using wamrc with --size-level=1 option.",
	reloc_type == R_X86_64_32 ? "R_X86_64_32"
	: "R_X86_64_32S");

it seems the relocation is for jump tables.

a workaround: disable jump tables
another workaround: use large model (but it's broken for other reasons: #3034)