More __get_user_asm_ll32 ...

[Ralf Baechle <ralf@linux-mips.org>]

__get_user_asm_ll32 contains a junk move %0, $0 left over from an older
version of the code.  Ignoring fixups code and data this instruction
inflates the normal path in __get_user() by 50% which may explain much of
the size and performance you have meassures.  It also always clears
the error return, iow. __get_user_asm_ll32(..., &<something 64-bit>)
would never have returned an error.  ARGH.

  Ralf