MIPS: math-emu: Nuke alternative names for IEEE-754 rounding modes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --cc arch/mips/math-emu/dp_sqrt.c
Simple merge

diff --cc arch/mips/math-emu/ieee754.h
Simple merge

diff --cc arch/mips/math-emu/sp_sqrt.c
Simple merge