power: Update QoS Max boundaries to use INT_MAX

Use INT_MAX rather than LONG_MAX as on a 64 bit system, the s32's
target_value and default_value will overflow.

Bug 1432878

Change-Id: Id9720e79c286802594620db65d8f50303d1a88d7
Signed-off-by: Sai Gurrappadi <sgurrappadi@nvidia.com>
Reviewed-on: http://git-master/r/373795
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Samuel Russell <samuelr@nvidia.com>
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>

Conflicts:
	include/linux/pm_qos.h