[AArch64][GlobalISel] Add new MOVI pattern for fp constants

GlobalISel is used in option -O0, so add MOVI pattern for it,
which is done similar in gcc.(https://godbolt.org/z/8j6fzG3h6)

Fix https://github.com/llvm/llvm-project/issues/53651

Reviewed By: dmgreen, paquette

Differential Revision: https://reviews.llvm.org/D122559