Temporarily add IKE to non-updatable stubs build

...in order to be able to resolve IKE classes. Note that this can be
removed once the prebuilt stub in prebuilts/sdk contains IKE, which
can be achieved with a new import after this CL is submitted:
I10759d22eaba4861b7d7f283b551156f09f54675

Bug: 177266501
Test: m
Change-Id: I7229b1486e7170acca5da8f1b7874e5eaaecb1db