bpf: workaround DataSec name constraint in the kernel
bpf: workaround DataSec name constraint in the kernel

For section name, the kernel does not accept '/'.
So change DataSec name here to please the kenerl
as we do not really use DataSec yet.
This change can be removed if the kernel is
changed to accpet '/' in section names.

Signed-off-by: Yonghong Song <e76892bbe783db2f627de1232e139db4de43da60@fb.com>

tuxology/bcc,brendangregg/bcc,iovisor/bcc,brendangregg/bcc,brendangregg/bcc,iovisor/bcc,iovisor/bcc,iovisor/bcc,tuxology/bcc,tuxology/bcc,tuxology/bcc,iovisor/bcc,tuxology/bcc,brendangregg/bcc,brendangregg/bcc