drm/radeon: tweak ACCEL_WORKING2 query for hawaii

Return 2 so we can be sure the kernel has the necessary
changes for acceleration to work.

Note: This patch depends on these two commits:
- drm/radeon: fix cut and paste issue for hawaii.
- drm/radeon: use packet2 for nop on hawaii with old firmware

Signed-off-by: Alex Deucher <[e-mail]>
Signed-off-by: Andreas Boll <[e-mail]>
Cc: [e-mail]

drivers/gpu/drm/radeon/radeon_kms.c

···
 		}
 		break;
 	case RADEON_INFO_ACCEL_WORKING2:
-		*value = rdev->accel_working;
+		if (rdev->family == CHIP_HAWAII) {
+			if (rdev->accel_working)
+				*value = 2;
+			else
+				*value = 0;
+		} else {
+			*value = rdev->accel_working;
+		}
 		break;
 	case RADEON_INFO_TILING_CONFIG:
 		if (rdev->family >= CHIP_BONAIRE)