intel: genxml: prevent missing ; with address fields dwords

intel: genxml: prevent missing ; with address fields dwords

Before this change, the generator could print this kind of things :

   const uint32_t v0 =
      __gen_uint(values->ValidBit, 0, 0) |
      __gen_uint(values->FaultType, 1, 2) |
      __gen_uint(values->SRCIDofFault, 3, 10) |
      __gen_uint(values->GTTSEL, 11, 1) |
   dw[0] = __gen_combine_address(data, &dw[0], values->VirtualAddressofFault, v0);

This change fix the trailing '|'.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>