Simplify PR23110 PE_DEBUG_DATA size checks

Simplify PR23110 PE_DEBUG_DATA size checks

The negative size check can be rolled into the "exceeds space left in
section" check if that is done using an unsigned comparison.  We know
that "addr - section->vma" is never larger than section->size since
the section is found by find_section_by_vma.

	* peXXigen.c (_bfd_XX_bfd_copy_private_bfd_data_common): Simplify
	PE_DEBUG_DATA size checks.