Fix v8_extprj build errors when using icecc

Open-webOS-DCO-1.0-Signed-off-by: Antti Harju <antti.harju@palm.com>
Open-webOS-DCO-1.0-Signed-off-by: Roger Stringer <roger.stringer@palm.com>

Change-Id: I2abdccaaa60d31837e669303a1236dd5e73944ee