Disable thumb on IOS. This removes one of XCodes complaints about the generated projects.
Disable thumb on IOS. This removes one of XCodes complaints about the generated projects.

R=caryclark@google.com
Review URL: https://codereview.appspot.com/6561072

git-svn-id: e8541e15acce502a64c929015570ad1648e548cd@5726 2bbb7eff-a529-9590-31e7-b0007b416f81

metajack/skia,metajack/skia,Cue/skia,mrobinson/skia,mrobinson/skia,mrobinson/skia,metajack/skia,Cue/skia,mrobinson/skia,mrobinson/skia,Cue/skia,Cue/skia,metajack/skia