MFC r310866,310868,310870,311903,313074:
Sync libarchive with vendor.

MFC r310866:

PR #771: Add NFSv4 ACL support to pax and restricted pax

NFSv4 ACL information may now be stored to and restored from tar archives.
ACL must be non-trivial and supported by the underlying filesystem, e.g.
natively by ZFS or by UFS with the NFSv4 ACL enable flag set.

MFC r310868:

PR #843: Fix memory leak of struct archive_entry in cpio/cpio.c
PR #851: Spelling fixes
Fix two protoypes in manual page archive_read_disk.3

MFC r310870:

Use __LA_DEPRECATED macro with functions deprecated in 379867e

MFC r311903:

#691: Support for SCHILY.xattr extended attributes
#854: Spelling fixes

Multiple fixes in ACL code:
- prefer acl_set_fd_np() to acl_set_fd()
- if acl_set_fd_np() fails, do no fallback to acl_set_file()
- do not warn if trying to write ACLs to a filesystem without ACL support
- fix id handling in archive_acl_(from_to)_text*() for NFSv4 ACLs

MFC r313074:

• support extracting NFSv4 ACLs from Solaris tar archives
• bugfixes and optimizations in the ACL code
• multiple fixes in the test suite
• typo and other small bugfixes
  
  Security fixes:
• cab reader: endless loop when parsing MSZIP signature (OSS-Fuzz 335)
• LHA reader: heap-buffer-overflow in lha_read_file_header_1() (CVE-2017-5601)
• LZ4 reader: null-pointer dereference in lz4_filter_read_legacy_stream() (OSS-Fuzz 453)
• mtree reader: heap-buffer-overflow in detect_form() (OSS-Fuzz 421, 443)
• WARC reader: heap-buffer-overflow in xstrpisotime() (OSS-Fuzz 382, 458)
  
  Memory leak fixes:
• ACL support: free memory allocated by acl_get_qualifier()
• disk writer: missing free in create_filesystem_object()
• file reader: fd leak (Coverity 1016755)
• gnutar writer: fix free in archive_write_gnutar_header() (Coverity 101675)
• iso 9660 reader: missing free in parse_file_info() (partial Coverity 1016754)
• program reader: missing free in __archive_read_program()
• program writer: missing free in __archive_write_program_free()
• xar reader: missing free in xar_cleanup()
• xar reader: missing frees in expat_xmlattr_setup() (Coverity 1229979-1229981)
• xar writer: missing free in file_free()
• zip reader: missing free in zip_read_local_file_header()

List of all libarchive issues at OSS-Fuzz:
https://bugs.chromium.org/p/oss-fuzz/issues/list?can=1&q=libarchive

Security: CVE-2017-5601