Fix handling of GNU Property notes that are not in a GNU NOTE PROPERTY section.

Fix handling of GNU Property notes that are not in a GNU NOTE PROPERTY section.

	PR 22450
gas	* elf-properties.c (_bfd_elf_link_setup_gnu_properties): Skip
	objects without a GNU_PROPERTY note section when looking for a bfd
	onto which notes can be accumulated.

ld	* testsuite/ld-elf/elf.exp: Add --defsym ALIGN=2|3 to assembler
	command line depending upon the size of the target address space.
	* testsuite/ld-elf/pr22450.s: New test file.
	* testsuite/ld-elf/pr22450.d: New test driver.
	* testsuite/config/default.exp: Add note that LD_CLASS refers to
	the size of the host linker not the size of the target linker.