Fix KR3DM driver build error

Fix the following error:
kr3dm.c:578:2: error: unknown field 'ioctl' specified in initializer
kr3dm.c:578:2: warning: initialization from incompatible pointer type
error, forbidden warning: kr3dm.c:578

Change-Id: I1b2daea3d4a92b796511431c86e5bae612a4dad2
Signed-off-by: Rashed Abdel-Tawab <rashedabdeltawab@gmail.com>