introduce isBpfSupported() helper

Test: build, atest
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I9e2a7e049746ad193eea01e7c9d6786d27728c72
diff --git a/bpfloader/BpfLoader.cpp b/bpfloader/BpfLoader.cpp
index ac59a24..5390fb4 100644
--- a/bpfloader/BpfLoader.cpp
+++ b/bpfloader/BpfLoader.cpp
@@ -72,7 +72,7 @@
 }
 
 int main() {
-    if (android::bpf::getBpfSupportLevel() != android::bpf::BpfLevel::NONE) {
+    if (android::bpf::isBpfSupported()) {
         // Load all ELF objects, create programs and maps, and pin them
         loadAllElfObjects();
     }