[AArch64] implement GPR (U/S)(MIN/MAX) instruction SDag support

Using SelectionDag, lower umin, umax, smin, smax intrinsics to corresponding
UMIN, UMAX, SMIN, SMAX instructions when feat CSSC is available.

See specs for corresponding immediate and register versions in:
https://developer.arm.com/documentation/ddi0602/2022-09/Base-Instructions/

Reviewed By: lenary

Differential Revision: https://reviews.llvm.org/D138813