exec: Make cpu_memory_rw_debug use the CPUs AS

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>

exec.c

diff --git a/exec.c b/exec.c
index 1e99115..b69fd29 100644
--- a/exec.c
+++ b/exec.c
@@ -2720,11 +2720,11 @@
         if (l > len)
             l = len;
         phys_addr += (addr & ~TARGET_PAGE_MASK);
-        if (is_write)
-            cpu_physical_memory_write_rom(&address_space_memory,
-                                          phys_addr, buf, l);
-        else
-            cpu_physical_memory_rw(phys_addr, buf, l, is_write);
+        if (is_write) {
+            cpu_physical_memory_write_rom(cpu->as, phys_addr, buf, l);
+        } else {
+            address_space_rw(cpu->as, phys_addr, buf, l, 0);
+        }
         len -= l;
         buf += l;
         addr += l;