fpu: softfloat: drop INLINE macro

fpu: softfloat: drop INLINE macro

This commit expands all uses of the INLINE macro and drop it.

The reason for this is to avoid clashes with external libraries with
bad name conventions and also because renaming keywords is not a good
practice.

PS: I'm fine with this change to be licensed under softfloat-2a or
softfloat-2b.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
(cherry picked from commit a49db98d1f85ada0c4e5bb22bd93d541e7159c43)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>