power: supply: charger-manager: Don't start charging in cable nofitication

Prevents direct charging control in cable notification and only set the
input current limit according to cable type.  Leave the enabling of
charing to cm_monitor() where charging management proceeds.  We may lose
a few ms to enable charging compared to before, but it's more important
that charging is enabled always in safe context.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>