msm: vidc: venc: Change bitrate layer ID default value

The default layer ID for bitrate is ALL_LAYER_ID.
This is based on new HFI changes.

CRs-Fixed: 2039941
Change-Id: I4ec83a19981bd76189be2de6ae17da99d87844cf
Signed-off-by: Vaibhav Deshu Venkatesh <vdeshuve@codeaurora.org>