vax-protos.h (legitimate_constant_address_p): Change definition to bool (from int) to un-break build.

2009-05-24  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* config/vax/vax-protos.h (legitimate_constant_address_p): Change
	definition to bool (from int) to un-break build.
	(legitimate_constant_p, vax_mode_dependent_address_p): Likewise.

From-SVN: r147832