dts: mnh-base: Increase ION carveout from 320MBs to 350MBs

Relieves out of ION memory errors spot in production.

Bug: 119781612
Change-Id: Ie37e4ffa0f249c6fcf1c64f7dcad6d86499d6ecf
Signed-off-by: Cheng Gu <[email protected]>
1 file changed