package/libssh2: bump to version 1.10.0

- Drop patches (already in version) and so autoreconf
- Update hash of COPYING due to updates in year and authors with
  https://github.com/libssh2/libssh2/commit/53ff2e6da450ac1801704b35b3360c9488161342
  https://github.com/libssh2/libssh2/commit/c998f79384116e9f6633cb69c2731c60d3a442bb
  https://github.com/libssh2/libssh2/commit/635caa90787220ac3773c1d5ba11f1236c22eae8
- Update indentation in hash file (two spaces)

https://www.libssh2.org/changes.html#1.10.0



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>