qcom: power: pm-data: use param_get_int

Using param_get_long to update the integer variables would leads
to variables populated with wrong values, hence switch to param_get_int.

Change-Id: I8817d27f5f8a2838682862b30759c5f94ed94362
Signed-off-by: Anji Jonnala <anjir@codeaurora.org>