Add support for drx_expand_scatter_gather() and instr_is_{scatter,gather}() on ARM/AArch64.
The functions instr_is_scatter() and instr_is_gather() will be added along with a patch shortly. This issue covers support for ARM/AArch64.
The functions instr_is_scatter() and instr_is_gather() will be added along with a patch shortly. This issue covers support for ARM/AArch64.