Update to 1.11.0 (rhbz#2211200)
    
    - New upstream release 1.11.0
      - Adds support for encrypt-then-mac (ETM) MACs
      - Adds support for AES-GCM crypto protocols
      - Adds support for sk-ecdsa-sha2-nistp256 and sk-ssh-ed25519 keys
      - Adds support for RSA certificate authentication
      - Adds FIDO support with *_sk() functions
      - Adds RSA-SHA2 key upgrading to OpenSSL, WinCNG, mbedTLS, OS400 backends
      - Adds Agent Forwarding and libssh2_agent_sign()
      - Adds support for Channel Signal message libssh2_channel_signal_ex()
      - Adds support to get the user auth banner message libssh2_userauth_banner()
      - Adds LIBSSH2_NO_{MD5, HMAC_RIPEMD, DSA, RSA, RSA_SHA1, ECDSA, ED25519,
        AES_CBC, AES_CTR, BLOWFISH, RC4, CAST, 3DES} options
      - Adds direct stream UNIX sockets with libssh2_channel_direct_streamlocal_ex()
      - Adds wolfSSL support to CMake file
      - Adds mbedTLS 3.x support
      - Adds LibreSSL 3.5 support
      - Adds support for CMake "unity" builds
      - Adds CMake support for building shared and static libs in a single pass
      - Adds symbol hiding support to CMake
      - Adds support for libssh2.rc for all build tools
      - Adds .zip, .tar.xz and .tar.bz2 release tarballs
      - Enables ed25519 key support for LibreSSL 3.7.0 or higher
      - Improves OpenSSL 1.1 and 3 compatibility
      - Now requires OpenSSL 1.0.2 or newer
      - Now requires CMake 3.1 or newer
      - SFTP: Adds libssh2_sftp_open_ex_r() and libssh2_sftp_open_r() extended APIs
      - SFTP: No longer has a packet limit when reading a directory
      - SFTP: Now parses attribute extensions if they exist
      - SFTP: No longer will busy loop if SFTP fails to initialize
      - SFTP: Now clear various errors as expected
      - SFTP: No longer skips files if the line buffer is too small
      - SCP: Add option to not quote paths
      - SCP: Enables 64-bit offset support unconditionally
      - Now skips leading \r and \n characters in banner_receive()
      - Enables secure memory zeroing with all build tools on all platforms
      - No longer logs SSH_MSG_REQUEST_FAILURE packets from keepalive
      - Speed up base64 encoding by 7x
       Assert if there is an attempt to write a value that is too large
      - WinCNG: fix memory leak in _libssh2_dh_secret()
      - Added protection against possible null pointer dereferences
      - Agent now handles overly large comment lengths
      - Now ensure KEX replies don't include extra bytes
      - Fixed possible buffer overflow when receiving SSH_MSG_USERAUTH_BANNER
      - Fixed possible buffer overflow in keyboard interactive code path
      - Fixed overlapping memcpy()
      - Fixed Windows UWP builds
      - Fixed DLL import name
      - Renamed local RANDOM_PADDING macro to avoid unexpected define on Windows
      - Support for building with gcc versions older than 8
      - Improvements to CMake, Makefile, NMakefile, GNUmakefile, autoreconf files
      - Restores ANSI C89 compliance
      - Enabled new compiler warnings and fixed/silenced them
      - Improved error messages
      - Now uses CIFuzz
      - Numerous minor code improvements
      - Improvements to CI builds
      - Improvements to unit tests
      - Improvements to doc files
      - Improvements to example files
      - Removed "old gex" build option
      - Removed no-encryption/no-mac builds
      - Removed support for NetWare and Watcom wmake build files
    - Avoid use of deprecated patch syntax
    - Build static library but don't package it since it's required for the
      test suite (https://github.com/libssh2/libssh2/issues/1056)
    - Remove redundant references to %{_libdir} from pkgconfig file
    - Add patch to work around strict permissions issues for sshd tests