Reset StaticLayout.mEllipsized during generate()

StaticLayout.mEllipsized and mMaxLineHeight was set for proper
calculation of static ellipsized text height. However, since
DynamicLayout uses a static instance of StaticLayout, and nobody reset
the mEllipsized, this caused configuration discrepancies for different
DynamicLayout instances.

Test: bit -t CtsTextTestCases:android.text.cts.DynamicLayoutTest
Test: bit -t CtsTextTestCases:android.text.cts.StaticLayoutTest
Fixes: 64372088
Bug: 64312574
Change-Id: I8ea6697d29da2ccbb433b64f17b4d1d6f254e8e1