bpf_progs: use macros for kernel version

Generated via:
  for f in bpf_progs/{block,dscpPolicy,netd,offload,test}.c; do
    sed -i -r 's@KVER[(]([45]), ([0-9]+), 0[)]@KVER_\1_\2@g' "${f}"
  done

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I8f211e47bf259fc75aa1caaaf82f41c1929ceab2
diff --git a/bpf_progs/dscpPolicy.c b/bpf_progs/dscpPolicy.c
index 88b50b5..e845a69 100644
--- a/bpf_progs/dscpPolicy.c
+++ b/bpf_progs/dscpPolicy.c
@@ -222,7 +222,7 @@
 }
 
 DEFINE_BPF_PROG_KVER("schedcls/set_dscp_ether", AID_ROOT, AID_SYSTEM, schedcls_set_dscp_ether,
-                     KVER(5, 15, 0))
+                     KVER_5_15)
 (struct __sk_buff* skb) {
     if (skb->pkt_type != PACKET_HOST) return TC_ACT_PIPE;