power: smb1390: Fix NULL pointer dereference issue

There exists a possible NULL pointer dereference issue due
to CP_DISABLE voter callback voting for CP_AWAKE votable which
is created after the creation of CP_DISABLE voter.

Fix this by creating CP_AWAKE votable prior to creation of CP_DISABLE
votable.

Change-Id: Ia838909aee1ed58a9b0b15779e7a8f32d6991a6c
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>