MAINTAINERS: Update maintainers of TI VPE and CAL

Benoit has moved to work in other technical areas, and Yemike Abhilash will
maintain these modules instead of him.

Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>