nvenc: Query supported minimum resolution
nvenc: Query supported minimum resolution
Hard-coded 16x16 resolution is likely to differ from the device's support
in most cases. If we can use NV_ENC_CAPS_WIDTH_MIN and NV_ENC_CAPS_HEIGHT_MIN,
update pad template with returned value.
nvcodec: Bump SDK header to version 9.1
Update header to query minimum resolution of encoder and to control
the number of reference frame if it's supported