tegra: adf: sanitize TEGRA_ADF_SET_PROPOSED_BW input

A bogus bw->win_num or bw->win[i].attr.win_index can lead
tegra_adf_negotiate_bw() to do an illegal array access.

Bug: 27208332

Reported-by: Jianqiang Zhao <zhaojianqiang1@gmail.com>
Signed-off-by: Greg Hackmann <ghackmann@google.com>
(cherry picked from commit 5da1a48675cccf68c150e0cfcded8065bc5069ec)

Change-Id: I6fb23576bd0e82f47814f8cc17fbcaaa5b57984f
1 file changed