Revert "drivers/slimbus/slimbus.c: avoid ICE in 4.9 - dirty hack"

This reverts commit 9180ea89d3e3c4e9cf77bddfdd118938c9f77f92.
drivers/slimbus/slimbus.c: avoid ICE -Og rather than -Os

Signed-off-by: Hieu Phan <aznrice2k4@gmail.com>
Revert "drivers/gpu/msm/adreno_ringbuffer.c: avoid ICE in 4.9 - dirty hack"

This reverts commit c02340e55ddc5dda65fbfdf2a29b548bc76bf83a.
drivers/gpu/msm/adreno_ringbuffer.c: avoid ICE -Og rather than -Os

Signed-off-by: Hieu Phan <aznrice2k4@gmail.com>