media: mediatek: vcodec: Improve wording & fix grammatic issues

Multiple issues detected while scanning the code by far not a complete
list of required changes but some small improvements.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_if.c

@@ -27,7 +27,7 @@ struct mtk_h264_dec_slice_param {
 /**
  * struct vdec_h264_dec_info - decode information
  * @dpb_sz		: decoding picture buffer size
- * @resolution_changed  : resoltion change happen
+ * @resolution_changed  : flag to notify that a resolution change happened
  * @realloc_mv_buf	: flag to notify driver to re-allocate mv buffer
  * @cap_num_planes	: number planes of capture buffer
  * @bs_dma		: Input bit-stream buffer dma address

drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c

@@ -131,7 +131,7 @@ struct vdec_h264_slice_share_info {
 /**
  * struct vdec_h264_slice_inst - h264 decoder instance
  *
- * @slice_dec_num:	how many picture be decoded
+ * @slice_dec_num:	Number of frames to be decoded
  * @ctx:		point to mtk_vcodec_dec_ctx
  * @pred_buf:		HW working prediction buffer
  * @mv_buf:		HW working motion vector buffer

drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_hevc_req_multi_if.c

@@ -342,7 +342,7 @@ struct vdec_hevc_slice_share_info {
 /**
  * struct vdec_hevc_slice_inst - hevc decoder instance
  *
- * @slice_dec_num:      how many picture be decoded
+ * @slice_dec_num:      Number of frames to be decoded
  * @ctx:                point to mtk_vcodec_dec_ctx
  * @mv_buf:             HW working motion vector buffer
  * @vpu:                VPU instance