axi_dmac: Remove unused address bits on AXI-Lite bus

The address width for the AXI-Lite configuration bus for the core is only
14 bit. Remove the upper unused bits from the public interface.

This allows infrastructure code to know about this and it might be able to
perform optimizations of the interconnect based on this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

library/axi_dmac/axi_dmac.v

@@ -42,7 +42,7 @@ module axi_dmac (
 	input s_axi_aresetn,
 
 	input         s_axi_awvalid,
-	input  [31:0] s_axi_awaddr,
+	input  [13:0] s_axi_awaddr,
 	output        s_axi_awready,
 	input   [2:0] s_axi_awprot,
 	input         s_axi_wvalid,
@@ -53,7 +53,7 @@ module axi_dmac (
 	output [ 1:0] s_axi_bresp,
 	input         s_axi_bready,
 	input         s_axi_arvalid,
-	input  [31:0] s_axi_araddr,
+	input  [13:0] s_axi_araddr,
 	output        s_axi_arready,
 	input   [2:0] s_axi_arprot,
 	output        s_axi_rvalid,