target-microblaze: Allow address sizes between 32 and 64 bits

Allow address sizes between 32 and 64 bits.
Reviewed-by: NAlistair Francis <alistair.francis@wdc.com>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

target/microblaze/cpu.c

@@ -155,9 +155,8 @@ static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
         return;
     }
 
-    if (cpu->cfg.addr_size != 32) {
-        error_setg(errp, "addr-size %d is out of range. "
-                   "Only 32bit is supported.",
+    if (cpu->cfg.addr_size < 32 || cpu->cfg.addr_size > 64) {
+        error_setg(errp, "addr-size %d is out of range (32 - 64)",
                    cpu->cfg.addr_size);
         return;
     }