OmniSwitch: limit overlay width in landscape mode

Only use a max of 2/3 of the width in landscape mode

Change-Id: I2c7fc5de95079db2d158193144e57b82fc972deb
OmniSwitch: fixup summary text

Change-Id: Idf3d1a107b4dfab48bda93caef5bbd1f2013fe48