CRIS-LRA: Fix uses of reload_in_progress

This shows no difference neither in arith-rand-ll nor coremark
numbers.  Comparing libgcc and newlib libc before/after, the only
difference can be seen in a few functions where it's mostly neutral
(newlib's _svfprintf_r et al) and one function (__gdtoa), which
improves ever so slightly (four bytes less; one load less, but one
instruction reading from memory instead of a register).

	* config/cris/cris.cc (cris_side_effect_mode_ok): Use
	lra_in_progress, not reload_in_progress.
	* config/cris/cris.md ("movdi", "*addi_reload"): Ditto.
	* config/cris/constraints.md ("Q"): Ditto.