MFC 265059: Set the new floating point exception mask correctly.

MFC 264696, 264721,

Add the deprecated fp{get,set}* functions, a few ports use them.

Rename the fp{get,set}* files so they no longer conflict with the
softfloat version of these files.

MFC 265059: Set the new floating point exception mask correctly.

MFC 264696, 264721,

Add the deprecated fp{get,set}* functions, a few ports use them.

Rename the fp{get,set}* files so they no longer conflict with the
softfloat version of these files.