vServices drivers compilation failed when it is compiled with LLVM compiler. Fix the vService drivers to compile successfully. Change-Id: Ie729480eb17c3156c63638edb4e47603cfad1ef2 Signed-off-by: Murali Nalajala <mnalajal@codeaurora.org> Signed-off-by: Prakruthi Deepak Heragu <pheragu@codeaurora.org>