power: smb5: Set WLS VOUT to 5V upon attach at End of Charge

If WLS is attached when End of Charge has already occurred, set WLS VOUT
to 5V instead of (2 * Vph) to adhere to wireless charging design.

Change-Id: Ieac824bca2673b560e077834fc305a9a65a46e1f
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>