clk: msm: clock-8996: Remove HLOS support for aggre0_noc_at_clk

Due to a hardware workaround, the gcc_aggre0_noc_at_clk clock
will be enabled by the XBL at boot and be left on. HLOS no
longer needs to control this clock which will now be turned
on automatically when the aggre0_noc GDSC is enabled.
Remove the clock driver support for this clock. In addition,
remove the QDSS Aggre0Noc bus node which was required for the
data path from PCIe masters.

Change-Id: I6ad90c492814449fbf3a57e50cab67956c177507
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>