Prevent assertion when codec encoding height size is larger than wide size

[trengginas]

PR #2797 will replace Android Camera framework with Camera2.
After the changes, when codec encoding param height size is larger than width size (e.g: 480x720) assertion will be raised:

pj_assert(p1 >= p0_end || p2 >= p0_end);

This is caused the width and height might get switched when creating the stream.

    /* Instantiate PjCamera */
    strm->cam_size.w = (vfd->size.w > vfd->size.h? vfd->size.w: vfd->size.h);
    strm->cam_size.h = (vfd->size.w > vfd->size.h? vfd->size.h: vfd->size.w);