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>

Some toolchains may automatically have sys/params.h which includes
isset() backport upstream commit
675ac7b4b6 to fix that. Also explicitly
link with openssl.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

Signed-off-by: John Clark inindev@gmail.com
Tested-by: John Clark inindev@gmail.com

Signed-off-by: John Clark <inindev@gmail.com>
Tested-by: John Clark <inindev@gmail.com>