Bug#856004: khtml: please build-depen on libssl1.0-dev for Stretch

[Sebastian Andrzej Siewior <sebastian@breakpoint.cc>]

Package: khtml
Version: 5.28.0-1
Severity: serious

khtml B-D on libssl-dev and has been built against it in the archive. I
am not entirely sure that this works. I doubt because QT itself uses
libssl1.0.2 and passing around SSL, SSL_CTX, BIO or any other struct is
a no no. Additionally some of the symbols, that khtml loads via
dlopen(), are no longer exported by libssl1.1.
Therefore I think it is best to change the B-D to
	libssl1.0-dev | libssl-dev (<< 1.1)
for Stretch.

Sebastian