Add cfi instructions.

Bug: 131093040

Test: Builds, step through function and verify unwinding works at every point.
Change-Id: Ie213615bebe8dd3a091c4ddef561f2a609b8c4ec
Merged-In: Ie213615bebe8dd3a091c4ddef561f2a609b8c4ec
(cherry picked from commit 51c655847f2f7d2a9127574d3aeda12755014608)
1 file changed