[patch/rfc] Default TARGET_LONG_DOUBLE_BIT to 64

[Andrew Cagney]

> 2002-02-11  Andrew Cagney  <ac131313@redhat.com>
> 
> * gdbarch.sh (TARGET_LONG_DOUBLE_BIT): Default to 64.
> 	* gdbarch.h, gdbarch.c: Re-generate.
> 

I've checked this in.