bpf: KVER_5_8 -> KVER_5_10

Neither 5.8 nor 5.9 are LTS, and thus aren't supported.
Let's simplify to 5.10 which is the actual LTS supported version.

Generated via:
  sed -i -r 's/KVER_5_8/KVER_5_10/' bpf/progs/offload.c
  sed -i -r 's/KVER_5_8/KVER_5_10/' bpf/progs/netd.c
plus manual edit to:
  bpf/headers/include/bpf_helpers.h

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I2b9563e1a392011718d3f7d788f84201993e58c2
diff --git a/bpf/progs/netd.c b/bpf/progs/netd.c
index 1f24669..7cc520c 100644
--- a/bpf/progs/netd.c
+++ b/bpf/progs/netd.c
@@ -514,14 +514,14 @@
     return match;
 }
 
-// Tracing on Android U+ 5.8+
+// Tracing on Android U+ 5.10+
 DEFINE_BPF_PROG_EXT("cgroupskb/ingress/stats$trace", AID_ROOT, AID_SYSTEM,
-                    bpf_cgroup_ingress_trace, KVER_5_8, KVER_INF,
+                    bpf_cgroup_ingress_trace, KVER_5_10, KVER_INF,
                     BPFLOADER_MAINLINE_U_VERSION, BPFLOADER_MAX_VER, MANDATORY,
                     "fs_bpf_netd_readonly", "",
                     LOAD_ON_ENG, LOAD_ON_USER, LOAD_ON_USERDEBUG)
 (struct __sk_buff* skb) {
-    return bpf_traffic_account(skb, INGRESS, TRACE_ON, KVER_5_8, SDK_LEVEL_U);
+    return bpf_traffic_account(skb, INGRESS, TRACE_ON, KVER_5_10, SDK_LEVEL_U);
 }
 
 DEFINE_NETD_BPF_PROG_KVER_RANGE("cgroupskb/ingress/stats$4_19", AID_ROOT, AID_SYSTEM,
@@ -536,14 +536,14 @@
     return bpf_traffic_account(skb, INGRESS, TRACE_OFF, KVER_NONE, SDK_LEVEL_NONE);
 }
 
-// Tracing on Android U+ 5.8+
+// Tracing on Android U+ 5.10+
 DEFINE_BPF_PROG_EXT("cgroupskb/egress/stats$trace", AID_ROOT, AID_SYSTEM,
-                    bpf_cgroup_egress_trace, KVER_5_8, KVER_INF,
+                    bpf_cgroup_egress_trace, KVER_5_10, KVER_INF,
                     BPFLOADER_MAINLINE_U_VERSION, BPFLOADER_MAX_VER, MANDATORY,
                     "fs_bpf_netd_readonly", "",
                     LOAD_ON_ENG, LOAD_ON_USER, LOAD_ON_USERDEBUG)
 (struct __sk_buff* skb) {
-    return bpf_traffic_account(skb, EGRESS, TRACE_ON, KVER_5_8, SDK_LEVEL_U);
+    return bpf_traffic_account(skb, EGRESS, TRACE_ON, KVER_5_10, SDK_LEVEL_U);
 }
 
 DEFINE_NETD_BPF_PROG_KVER_RANGE("cgroupskb/egress/stats$4_19", AID_ROOT, AID_SYSTEM,