Add a dependency on boot jars $(LOCAL_BUILT_MODULE)

After I25163e91886cea6941afa25cdb529ed053278dcb there is no longer
a dependency on $(LOCAL_BUILT_MODULE) for boot jars, as boot.art
is installed instead.  Add a dependency from boot.art to
$(LOCAL_BUILT_MODULE) so that $(LOCAL_BUILT_MODULE) and its
dependencies (which may include jacoco-report-classes.jar) is
copied for every build.

Fixes: 127702563
Test: forrest
Change-Id: I4db2d1f5fe2e1141fe93317cd7a2a58a33f8fbff