These functions are indended for use by drivers and should be available
also when the driver is built as a module.

Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NÃrjan Eide <orjan.eide@arm.com>
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>