MLK-17108-2 staging: typec: support dead battery charging

MLK-17108-2 staging: typec: support dead battery charging

If the vbus is aready on and remote cc state is Rp while typec init, we
think it's a dead battery case, this needs the PD session already setup
by bootloader,  so kernel can negotiate a new power session by soft reset,
this patch use the exsiting flag vbus_never_low as boot from dead battery
flag, but update the condition of setting it: not only check vbus, also
the cc status to make sure remote is a power source, if yes, bypass the
vbus sink disable. If the vbus is from local, we will still disable vbus
charge so original code intention is kept.

Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>