Enable CFI for SYNA wpa_supplicant_8

Since the wpa_supplicant_8 has enabled cfi, the
static lib that it uses should enable cfi, otherwise
there will be runtime crashes.

Bug: 225784334
Test:
lunch tangor-userdebug
m -j
run the image on the tangotron and wpa_supplicant should
not crash with cfi failures.

Change-Id: I17384a47c66cf9385cbb41ad0c0786907ce2f28c