The upgrade to 2.5.0 accidentally dropped the CPP defines, so the
precompiled-active-filter option has been missing and the demand dialing
option in uci has been broken since then. Add the missing defines.
Fixes: 9cecf2b16e ("ppp: update to 2.5.0")
Closes: https://github.com/openwrt/openwrt/issues/24454
Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/24467
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
f59200bc56