ARM hard-float ABI: add ldconfig flag value

[Roland McGrath]

libc-ports@sourceware.org is the right list for discussing ARM.

OSABI is used in a generic way and should not be used for machine-specific
purposes.  An e_flags (EF_*) bit is probably a better choice.  There are
already these bits (among others):
	#define EF_ARM_SOFT_FLOAT	0x200
	#define EF_ARM_VFP_FLOAT	0x400
	#define EF_ARM_MAVERICK_FLOAT	0x800
But I don't know the history of their use.  Off hand EF_ARM_VFP_FLOAT seems
like it's already what you want, but maybe it has a different meaning (like
just that it uses VFP, not that the ABI specifies using VFP registers in
the calling convention).


Thanks,
Roland