Copy BFD_COMPRESS/BFD_DECOMPRESS/BFD_COMPRESS_GABI for thin archive

We need to copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags
for thin archive.

	PR ld/24951
	* archive.c (_bfd_get_elt_at_filepos): Copy BFD_COMPRESS,
	BFD_DECOMPRESS and BFD_COMPRESS_GABI flags for thin archive.
2 files changed