ppp-2.4.5: remove `DP = "-1"`
ppp-2.4.5: remove `DP = "-1"`

Oe-core is using 2.4.5 and it works OK there.

Signed-off-by: Steffen Sledz <2e29ea0aa1503a723683d9a206c59d4c02f6bad0@dresearch-fe.de>
Acked-by: Paul Menzel <acd6d3b156327487a919475da61b8867f1e8b249@users.sourceforge.net>

sledz/oe,dave-billin/overo-ui-moos-auv,dave-billin/overo-ui-moos-auv,sledz/oe,sledz/oe,mrchapp/arago-oe-dev,dave-billin/overo-ui-moos-auv,sledz/oe,dave-billin/overo-ui-moos-auv,mrchapp/arago-oe-dev,mrchapp/arago-oe-dev,mrchapp/arago-oe-dev,dave-billin/overo-ui-moos-auv,mrchapp/arago-oe-dev,mrchapp/arago-oe-dev,sledz/oe,mrchapp/arago-oe-dev,dave-billin/overo-ui-moos-auv,sledz/oe,dave-billin/overo-ui-moos-auv,sledz/oe