s390/vx: allow to include vx-insn.h with .include
To make the vx-insn.h more versatile avoid cpp preprocessor macros
and allow to use plain numbers for vector and general purpose register
operands. With that you can emit an .include from a C file into the
assembler text and then use the vx-insn macros in inline assemblies.
For example:
asm (".include \"asm/vx-insn.h\"");
static inline void xor_vec(int x, int y, int z)
{
asm volatile("VX %0,%1,%2"
: : "i" (x), "i" (y), "i" (z));
}
Signed-off-by: 
Martin Schwidefsky <schwidefsky@de.ibm.com>
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