BpfSyscallWrapper - use 'enum bpf_cmd' instead of int for bpf() arg

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I73d8d33e1677088fbbed02c554c88269912d2f76
diff --git a/staticlibs/native/bpf_syscall_wrappers/include/BpfSyscallWrappers.h b/staticlibs/native/bpf_syscall_wrappers/include/BpfSyscallWrappers.h
index d5b7670..f7d6a38 100644
--- a/staticlibs/native/bpf_syscall_wrappers/include/BpfSyscallWrappers.h
+++ b/staticlibs/native/bpf_syscall_wrappers/include/BpfSyscallWrappers.h
@@ -38,7 +38,7 @@
  * all unused portions are zero.  It will fail with E2BIG if we don't fully zero bpf_attr.
  */
 
-inline int bpf(int cmd, const bpf_attr& attr) {
+inline int bpf(enum bpf_cmd cmd, const bpf_attr& attr) {
     return syscall(__NR_bpf, cmd, &attr, sizeof(attr));
 }