Reverse check for multi-character ellipsis

Reverse a recently-introduced incorrect check for multi-character
ellipsis in Layout.java. The check was introduced in
Id1dfdc503f87fabed2447d55ab2107eee0eccd08.

Test: bit CtsTextTestCases:*
Test: bit FrameworksCoreTests:android.text.
Change-Id: I79198be0bd202a303f8db02a235c2af3b76abf32