interconnect: qcom: add virt_clk provider and QUP nodes

Add virtual QUP bus nodes to separate out bandwidth requests
and clock votes to allow for independent control.

Change-Id: I8d5a171e60b2e76db83e1d5a27f4cdfe4a1408d9
Signed-off-by: David Dai <daidavid1@codeaurora.org>