move the bpf.progs_loaded = 1 setting back to bpfloader

change of design: we'll call netbpfload before bpfloader

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I2d7a04a1bf1aa1d163f2b3936e2cde61308c4aa4