feat(mediatek): add vcp driver support

It is excepted that kernel vcp can request the vcp hw do
some security setting via SMC call services.

Signed-off-by: Xiangzhi Tang <xiangzhi.tang@mediatek.cor

feat(mediatek): add vcp driver support

It is excepted that kernel vcp can request the vcp hw do
some security setting via SMC call services.

Signed-off-by: Xiangzhi Tang <xiangzhi.tang@mediatek.corp-partner.google.com>
Change-Id: Ib5c01c1d72b3483262dcd821878e6e53ba9c681c

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