Add manifest for 10.1-M1

Change-Id: I4103d4331d5c63087612a63596b67e3ec85c0056
Merge branch 'cm-10.1' of github.com:CyanogenMod/android into cm-10.1
manifest: use our display-legacy

Change-Id: If3cc68cb4a7254259a65ea60c7682276c3370d87