Sync toplevel configure with binutils-gdb

	Sync with binutils-gdb:
	2015-05-13  John David Anglin  <dave.anglin@bell.net>

	* configure.ac: Disable configuration of GDB for HPUX targets.
	* configure: Regenerate.

	2015-04-01  H.J. Lu  <hongjiu.lu@intel.com>

	* configure.ac: Add --with-system-zlib.
	* configure: Regenerated.

	2015-01-28  James Bowman  <james.bowman@ftdichip.com>

	* configure.ac: Add FT32 support.
	* configure: Regenerate.

	2015-01-12  Anthony Green  <green@moxielogic.com>

	* configure.ac: Don't disable gprof for moxie.
	* configure: Rebuild.

From-SVN: r225777