This patch fixes a bug in get_field which meant that we incorrectly 
converted mixed-endian floats (ARM FPA style) into the internal doublest 
format.  This short change fixes over 300 testsuite failures in a combined 
arm/thumb testsuite run on arm-elf.

	* doublest.c (get_field): Correctly extract floatformat_littebyte_bigword
	fields.

OK?