regulator: rpmh-regulator: correct initial wake-only state request

When the first rpmh-regulator RPMh sleep state request is sent,
no wake-only state request is guaranteed to be sent to restore
the desired active set regulator values.  Correct this by
resending all active set parameters in the wake-only state when
the first sleep state request is sent.

Change-Id: Ie63ee4d78f62a9366934afe6931e2b80e10334d5
Signed-off-by: David Collins <collinsd@codeaurora.org>