bpf: replace KVER_5_8 with KVER_5_10

While 5.8+ supports bpf ringbuffers, neither it (nor 5.9)
are LTS kernels, and are thus not supported by Android.

Thus change all references to 5.8 to the actual minimum
LTS kernel which supports bpf ringbuffers - 5.10

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <[email protected]>
Change-Id: Ie72ee64ac32b68a380be14ebeedd8113115abe33
2 files changed