bpf: move isAtLeastX to BpfUtils.h

Partially due to:
  https://android-review.googlesource.com/c/platform/bionic/+/3497280

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I74a626c45d641e226d7f71e00d0b542c5701417d
diff --git a/tests/unit/jni/Android.bp b/tests/unit/jni/Android.bp
index 1a833e1..1e9db03 100644
--- a/tests/unit/jni/Android.bp
+++ b/tests/unit/jni/Android.bp
@@ -22,6 +22,7 @@
     ],
 
     shared_libs: [
+        "libbase",
         "liblog",
         "libnativehelper",
         "libnetdutils",