Fix ICE in rtl check when bootstrap.

/var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/libgfortran/generated/matmul_i1.c: In function ‘matmul_i1_avx512f’:
/var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/libgfortran/generated/matmul_i1.c:1781:1: internal compiler error: RTL check: expected elt 0 type 'i' or 'n', have 'w' (rtx const_int) in vpternlog_redundant_operand_mask, at config/i386/i386.cc:19460
 1781 | }
      | ^
0x5559de26dc2d rtl_check_failed_type2(rtx_def const*, int, int, int, char const*, int, char const*)
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/rtl.cc:761
0x5559de340bfe vpternlog_redundant_operand_mask(rtx_def**)
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/config/i386/i386.cc:19460
0x5559dfec67a6 split_44
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/config/i386/sse.md:12730
0x5559dfec67a6 split_63
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/config/i386/sse.md:28428
0x5559deb8a682 try_split(rtx_def*, rtx_insn*, int)
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/emit-rtl.cc:3800
0x5559deb8adf2 try_split(rtx_def*, rtx_insn*, int)
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/emit-rtl.cc:3972
0x5559def69194 split_insn
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/recog.cc:3385
0x5559def70c57 split_all_insns()
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/recog.cc:3489
0x5559def70d0c execute
        /var/tmp/portage/sys-devel/gcc-14.0.0_pre20230806/work/gcc-14-20230806/gcc/recog.cc:4413

Use INTVAL (imm_op) instead of XINT (imm_op, 0).

gcc/ChangeLog:

	PR target/110926
	* config/i386/i386-protos.h
	(vpternlog_redundant_operand_mask): Adjust parameter type.
	* config/i386/i386.cc (vpternlog_redundant_operand_mask): Use
	INTVAL instead of XINT, also adjust parameter type from rtx*
	to rtx since the function only needs operands[4] in vpternlog
	pattern.
	(substitute_vpternlog_operands): Pass operands[4] instead of
	operands to vpternlog_redundant_operand_mask.
	* config/i386/sse.md: Ditto.