ARM: dts: msm: Modify connections from SNOC PNOC gateway

Modify the connections from SNOC PCNOC gateway to connect to the
PCNOC internal nodes instead of directly connecting to slaves. Doing
so could lead to circular paths in the bus topology.

Change-Id: I58e9e7ccd24f9bd355c8b1882b023546b2d1578b
Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>