firmware: imx: scu-pd: add missed lvds lpi2c and pwm power domains

LVDS' lpi2c and pwm power domains definitions are missed.
Add them here.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>