defconfig: sa415m: enable MHI host stack for sa415m

MHI host driver allows users to communicate to MHI compatible devices
over PCIe bus. Enable MHI host stack for sa415m.

Change-Id: I35b1482a33e0d112b18bfed331ce089690bf5be8
Signed-off-by: Nitesh Gupta <nitegupt@codeaurora.org>
2 files changed