[remote] Make registers network byteordered?

[Andrew Cagney]

Hello,

At present the target sends back registers in target byte order format
vis:

	T0525:c4060280ffffffff;1d:c0ffff81ffffffff;

I'd like to think about a tweek to this part of the protocol so that the
format:

	T0525=ffffffff80020664;1d=ffffffff81ffffc0;

is accepted.  The thing I can't figure out is now to also change the
[pP] packets so that GDB can correctly detect targets that support this
format when writing registers.

General comments?

	Andrew