elf: Set p_memsz to p_filesz for loadable PT_NOTE segment

elf: Set p_memsz to p_filesz for loadable PT_NOTE segment

Since p_memsz of the loadable PT_NOTE segment should be the same as
p_filesz, set p_memsz on the loadable PT_NOTE segment when updating
p_filesz.

bfd/

	PR binutils/27708
	* elf.c (assign_file_positions_for_non_load_sections): Set
	p_memsz to p_filesz for the loadable PT_NOTE segment.

binutils/

	PR binutils/27708
	* testsuite/binutils-all/x86-64/pr27708.dump: New file.
	* testsuite/binutils-all/x86-64/pr27708.exe.bz2: Likewise.
	* testsuite/binutils-all/x86-64/x86-64.exp: Run binutils/27708
	test.