Revert "core/Makefile: removing need for sqlite3"

This reverts commit a0416446bb1fbec9a3b8d7729453c7b190882b8f.

Sqlite is needed by libEGL_mali.so (e.g Galaxy S2).
main.mk: removing bouncycastle, not used anymore

Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@canonical.com>
Makefile: using bsdiff from the host instead of building our own

Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@canonical.com>
core.mk: adding direct_tests from hybris by default

Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@canonical.com>
Merge remote-tracking branch 'phablet/phablet-saucy' into ubuntu-touch-vision