fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git

(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Source homepage has changed, and sources are updated to version 1.1.1
released 25 August 2015.

Patch adjtimex still applies.

Changes in version 1.1.1:

- Fixed out of bound issue and a missing null-terminated string (thanks
  to Tobias Stöckmann)

Signed-off-by: Tijs Van Buggenhout <tvbuggen@netzerk.be>