LoongArch: Generate the final immediate for lu12i.w, lu32i.d and lu52i.d

Generate 0x1010 instead of 0x1010000>>12 for lu12i.w. lu32i.d and lu52i.d use
the same processing.

gcc/ChangeLog:

	* config/loongarch/lasx.md: Use new loongarch_output_move.
	* config/loongarch/loongarch-protos.h (loongarch_output_move):
	Change parameters from (rtx, rtx) to (rtx *).
	* config/loongarch/loongarch.cc (loongarch_output_move):
	Generate final immediate for lu12i.w and lu52i.d.
	* config/loongarch/loongarch.md:
	Generate final immediate for lu32i.d and lu52i.d.
	* config/loongarch/lsx.md: Use new loongarch_output_move.

gcc/testsuite/ChangeLog:

	* gcc.target/loongarch/imm-load.c: Not generate ">>".