[Sparc] Make sure that we really don't emit quad-precision unless the...

[Sparc] Make sure that we really don't emit quad-precision unless the "hard-quad-float" feature is available

Make sure that we really don't emit quad-precision unless the "hard-quad-float"
feature is available. Add missing replacement instruction patterns that are
needed to emit alternative code for conditional moves of quad-precision floats.

Test from koakuma.

Reviewed By: koakuma

Differential Revision: https://reviews.llvm.org/D119104