Close sidebandHandle to avoid fd leakage

As videos preview start to play on Netflix UI, If it's tunnel mode, it
will configure video tunnel mode each time. This will have fd leakage
for the sidebandHandles that weren't release each time. Eventually,
Netflix will crash due to the fd limit in kernel.

Test:
Netflix preview OK and will not crash

Bug: 136197226
Change-Id: Idea549d34b080baf2875078d96199c480227992f