qpnp-smb2: STAT pin configured auto after parallel_psy detected

Change STAT pin config to HW auto mode only when the charger driver
detects parallel-psy, to make sure that the smb1355 does not
start charging if PMI8998 probes before parallel charger.

CRs-Fixed: 2044532
Change-Id: Ib5d87d95261564edd85fd18872027decd7be4da5
Signed-off-by: Harry Yang <harryy@codeaurora.org>