[next] Fix #2079: Add missing 1 immediate to rcl

[Rot127]

Your checklist for this pull request

• I've documented or updated the documentation of every API function and struct this PR changes.
• I've added tests that prove my fix is effective or that my feature works (if possible)

Detailed description

Companion PR to #2329.
Simply because x86 won't be updated to AS, so the fix should also be in v6.

Test plan

Add to issues.cs

./cstool -d x32 0xd1,0x10
 0  d1 10                                            rcl	dword ptr [eax]
	ID: 615 (rcl)
	Prefix:0x00 0x00 0x00 0x00 
	Opcode:0xd1 0x00 0x00 0x00 
	rex: 0x0
	addr_size: 4
	modrm: 0x10
	disp: 0x0
	sib: 0x0
	imm_count: 1
		imms[1]: 0x1
	op_count: 2
		operands[0].type: MEM
			operands[0].mem.base: REG = eax
		operands[0].size: 4
		operands[0].access: READ
		operands[1].type: IMM = 0x1
		operands[1].size: 0
		operands[1].access: READ
	Registers read: eax
	Registers modified: eflags
	EFLAGS: MOD_CF UNDEF_OF

Closing issues

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