[MIPS] Unify mips_fpu_soft_struct and mips_fpu_hard_structs.

The struct mips_fpu_soft_struct and mips_fpu_hard_struct are
completely same now and the kernel fpu emulator assumes that.  This
patch unifies them to mips_fpu_struct and get rid of mips_fpu_union.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/fpu_emulator.h b/include/asm-mips/fpu_emulator.h
index 16cb4d1..2731c38 100644
--- a/include/asm-mips/fpu_emulator.h
+++ b/include/asm-mips/fpu_emulator.h
@@ -12,8 +12,8 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  *
- * Further private data for which no space exists in mips_fpu_soft_struct.
- * This should be subsumed into the mips_fpu_soft_struct structure as
+ * Further private data for which no space exists in mips_fpu_struct.
+ * This should be subsumed into the mips_fpu_struct structure as
  * defined in processor.h as soon as the absurd wired absolute assembler
  * offsets become dynamic at compile time.
  *