net: bluetooth: hci_conn: fix 4.8 error
video: msm: mipi_novatek: fix 4.8 errors
usb: gadget: f_qdss: fix 4.8 errors
arch: arm: boot: compressed: Makfile: fix 4.8 errors
Makefile: add some optimization flags for ARM

Signed-off-by: faux123 <reioux@gmail.com>
Makefile: fixed optimization flags for ARM on GCC 4.8
Makefile: update to work with GCC 4.7 toolchain

Signed-off-by: Paul Reioux <reioux@gmail.com>