camera: avoid narrowing of the ioctl request
The `ioctl` take request of the `unsinged long` type but current
implementation narrows it up to `int`.
Test: if add something like this into `IoctlLocked`:
```
switch (request) {
case VIDIOC_QBUF: break;
default:;
}
```
the following error is appears: "error: case value evaluates
to 3227014671, which cannot be narrowed to type 'int'
[-Wc++11-narrowing]".
Change-Id: Icb1c99e082feb0c019393205a4b0b717ddc09c05
Signed-off-by: Sergii Piatakov <sergii.piatakov@globallogic.com>
2 files changed
