gprofng: disable LTO as a workaround

gprofng: disable LTO as a workaround

Temporarily disable LTO by passing -fno-lto until PR32092 is fixed,
as we get test failures and seemingly a completely broken gprofng otherwise.

Use the same idiom as libdecnumber for -fno-lto.

gprofng/
	PR gprofng/32092

	* Makefile.am: Pass -fno-lto if supported.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Pass -fno-lto if supported.
	* doc/Makefile.in: Regenerate.
	* gp-display-html/Makefile.in: Regenerate.
	* libcollector/Makefile.am: Pass -fno-lto if supported.
	* libcollector/Makefile.in: Regenerate.
	* src/Makefile.am: Pass -fno-lto if supported.
	* src/Makefile.in: Regenerate.