The enum oem_capability_mask was introduced by:
qcacld-3.0: Add support for get and set OEM capability
Change-Id I8c4a8c19633845750ec9d2492632471c68ba410d
However, the enum wasn't actually used by that patch, and instead
struct sme_oem_capability represents that information, so remove the
enum.
Change-Id: Ie52fa8d69c95c1021bf94b052f373e3e75da6f80
CRs-Fixed: 3425038