qualcommax: add addresses to DP nodes

qualcommax: add addresses to DP nodes

DP nodes live under the soc node, and since soc is a simple bus it requires
node adresses to be present.

So, simply add the node addreses to avoid the following dtc warning:
Warning (unit_address_vs_reg): /soc/dp1: node has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): /soc/dp2: node has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): /soc/dp3: node has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): /soc/dp4: node has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): /soc/dp5: node has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): /soc/dp6: node has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): /soc/dp5-syn: node has a reg or ranges property, but no unit name
Warning (unit_address_vs_reg): /soc/dp6-syn: node has a reg or ranges property, but no unit name

Signed-off-by: Robert Marko <robimarko@gmail.com>