video: tegra: host: protect against offset overflow

(cherry pick from commit 4cef1ae735a4e438a5de246f61da112fab299feb)

Check nvhost error notifier offset value to protect against
potential unsigned integer overflow.

Signed-off-by: Xia Yang <xiay@nvidia.com>
Bug: 27251090
Change-Id: I4c214680770937d1257542f76a5acee9053a6f7d
1 file changed