x86/Intel: disassemble vcvt{,u}si2s{d,s} with correct operand order

x86/Intel: disassemble vcvt{,u}si2s{d,s} with correct operand order

As pointed out before, the documentation mandates the rounding mode to
follow the GPR, so disassembler should produce output accordingly.

gas/testsuite/
2015-06-01  Jan Beulich  <jbeulich@suse.com>

	* gas/i386/avx512f.s: Adjust operand order for Intel syntax
	vcvt{,u}si2ss.
	* gas/i386/x86-64-avx512f.s: Adjust operand order for Intel
	syntax vcvt{,u}si2s{d,s}.

opcodes/
2015-06-01  Jan Beulich  <jbeulich@suse.com>

	* i386-dis.c (print_insn): Swap rounding mode specifier and
	general purpose register in Intel mode.