Add proper cfi directives.

This function has a mix of arm and cfi directives. Since our unwinders
can work with both, remove the arm directives and fix the cfi directives.

Bug: 17392751

(cherry picked from commit 7fae7c40e62ffe669fc224c57ed530b4d9c8da2c)

Change-Id: I82a84db47ffa283f9e392d24de9a8c9958a59631
1 file changed