Deprecate ARM FPA in GDB

[Yao Qi]

Hi,
I plan to deprecate and remove ARM FPA support in GDB 8.1.  The GCC FPA
deprecation discussion was started in 2010 in
https://gcc.gnu.org/ml/gcc/2010-05/msg00442.html and it was removed
in 2012 https://gcc.gnu.org/ml/gcc-patches/2012-06/msg00825.html

The deprecation means GDB no longer has options "fpa" and "softfpa" in
command "set arm fpu".  Currently, it is,

(gdb) set arm fpu
auto     fpa      softfpa  softvfp  vfp

I'll post this proposal to gdb-announce@sourceware.org next week.

-- 
Yao (齐尧)