MFC: r205394
MFC: r205394

Ensure that __fpu_ftox() both returns the high bits and res[1] contains
the low bits also in the default case.

PR:		144900
Obtained from:	OpenBSD

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase