[PT17.5] Revert to booleans for send/not send broadcast constants.

In PT17, for security of the patch these two constants have been
switched from boolean to enum values. While this is nice for making
sure a patch is correct, it's also pretty wasteful. Now that it's
certain that the values of these fields don't matter, they can be
set to logical values (as opposed to reversed as it was the case
before PT17.

Test: runtest
Change-Id: I93a0780e23c2f658687be066dc16f27529baaa86