Fixed encapsulation output propagation for androidbp backend.
Fixed encapsulation output propagation for androidbp backend.

The outputs of a genrule module include the outputs of
encapsulated modules. This means:
* ${modname_out} must include encapsulated outputs
* getModuleSrcs() must include encapsulated outputs
* getArgs() must return encapsulated outputs as dependencies

Correct propagated outputs based on `encapsulates` property.

Change-Id: Icacf5687f743610cd37cc11234563ff8586e89c5
Signed-off-by: Sebastian Birunt <1263050fc3fa16b5af6da86b405f920b3d75697b@arm.com>

ARM-software/bob-build,ARM-software/bob-build,ARM-software/bob-build,ARM-software/bob-build,ARM-software/bob-build