pwm: qti-lpg: Specify LPG channel numbers with a property

Instead of parsing the LPG channel numbers from the register size cell,
define a property to specify the LPG channel numbers directly.

Change-Id: Ia41def7179440432625210831b6e621dd61c8985
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
3 files changed