bfd: Properly install library and header files

bfd: Properly install library and header files

Rename bfdlib_LTLIBRARIES and bfdinclude_HEADERS to lib_LTLIBRARIES and
include_HEADERS to fix the missing installed library and header files in
bfd caused by

commit bd32be01c997f686ab0b53f0640eaa0aeb61fbd3
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Fri Dec 3 00:23:20 2021 -0500

    bfd: merge doc subdir up a level

	PR binutils/28807
	* Makefile.am (bfdlib_LTLIBRARIES): Renamed to ...
	(lib_LTLIBRARIES): This.
	(bfdinclude_HEADERS): Renamed to ...
	(include_HEADERS): This.
	* Makefile.in: Regenerate.
	* doc/local.mk (install): Removed.