defconfig: bengal: Enable stub and rpm-smd regulator drivers

Enable stub regulator and rpm-smd drivers so that clients can
utilize all regulator features.

Change-Id: I5042974d63c48f0528ae674a1ee292b8a28d2f37
Signed-off-by: Kavya Nunna <knunna@codeaurora.org>
1 file changed