The -Wall flag was unintentionally removed from the end of the CFLAG var in
089612794d4d8d9c79bd2a4365d6df78371f7f40 by me. This patch puts it back in.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>