test: cpu: Handle both 32bit and 64bit CPUs

Handle both 32bit and 64bit systems, i.e. sandbox and sandbox64
the same way drivers/cpu/cpu_sandbox.c does, that is in case
CONFIG_PHYS_64BIT is enabled, assume 64bit address width, else
assume 32bit address width. This fixes ut_dm_dm_test_cpu test
failure on sandbox64.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/cpu.c b/test/dm/cpu.c
index d7e596ee..5734cd0 100644
--- a/test/dm/cpu.c
+++ b/test/dm/cpu.c
@@ -37,7 +37,7 @@
 	ut_assertok(cpu_get_info(dev, &info));
 	ut_asserteq(info.cpu_freq, 42 * 42 * 42 * 42 * 42);
 	ut_asserteq(info.features, 0x42424242);
-	ut_asserteq(info.address_width, 32);
+	ut_asserteq(info.address_width, IS_ENABLED(CONFIG_PHYS_64BIT) ? 64 : 32);
 
 	ut_asserteq(cpu_get_count(dev), 42);