Enable cfi for 32bit arch

Enabling cfi for 32-bit arch; b/35157333 seems to have been resolved in b/67507331.

Bug: 158010610

Test: manual interaction with Wimbley device: youtube video, chrome
navigations, gmail
MPTS testing on Sargo
Change-Id: I9eb034deed9938710f0f7b690fa57108d9bc5669

Change-Id: I434748ede352f998e64a6639de6ba162762ee7f0