Really we need to fix the inheritance to make
BpfMapRO the parent class of BpfMap:
but that's a far more difficult thing to do,
so in the short term we punt like this.
This makes BpfMapRO a little bit more usable,
and allows a slow transition across the codebase...
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I1c5112db70e9e523c113cba536fbe19422b4d3f3