power: smb1351-charger: Fix check in shutdown path for parallel disable

Change in parameter checked while disabling parallel charger in the
shutdown path as the charger present flag is not updated in parallel
charger mode.

CRs-Fixed: 2172956
Change-Id: I79ff909abae5dcc2692c69a81ea70ee56ca34522
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>