hw/arm/acpi: simplify AML bit and/or statement

The last argument of AML bit and/or statement is the target variable,
so we don't need to use a NULL target and then an additional store
operation; using just aml_and() or aml_or() statement is enough.

Also update tests/data/acpi/virt/DSDT* to pass "make check".

Cc: Shannon Zhao <shannon.zhaosl@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Heyi Guo <guoheyi@huawei.com>
Message-id: 20191209063719.23086-2-guoheyi@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/virt-acpi-build.c

@@ -267,17 +267,17 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap,
         aml_create_dword_field(aml_arg(3), aml_int(8), "CDW3"));
     aml_append(ifctx, aml_store(aml_name("CDW2"), aml_name("SUPP")));
     aml_append(ifctx, aml_store(aml_name("CDW3"), aml_name("CTRL")));
-    aml_append(ifctx, aml_store(aml_and(aml_name("CTRL"), aml_int(0x1D), NULL),
-                                aml_name("CTRL")));
+    aml_append(ifctx, aml_and(aml_name("CTRL"), aml_int(0x1D),
+                              aml_name("CTRL")));
 
     ifctx1 = aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(0x1))));
-    aml_append(ifctx1, aml_store(aml_or(aml_name("CDW1"), aml_int(0x08), NULL),
-                                 aml_name("CDW1")));
+    aml_append(ifctx1, aml_or(aml_name("CDW1"), aml_int(0x08),
+                              aml_name("CDW1")));
     aml_append(ifctx, ifctx1);
 
     ifctx1 = aml_if(aml_lnot(aml_equal(aml_name("CDW3"), aml_name("CTRL"))));
-    aml_append(ifctx1, aml_store(aml_or(aml_name("CDW1"), aml_int(0x10), NULL),
-                                 aml_name("CDW1")));
+    aml_append(ifctx1, aml_or(aml_name("CDW1"), aml_int(0x10),
+                              aml_name("CDW1")));
     aml_append(ifctx, ifctx1);
 
     aml_append(ifctx, aml_store(aml_name("CTRL"), aml_name("CDW3")));
@@ -285,8 +285,8 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap,
     aml_append(method, ifctx);
 
     elsectx = aml_else();
-    aml_append(elsectx, aml_store(aml_or(aml_name("CDW1"), aml_int(4), NULL),
-                                  aml_name("CDW1")));
+    aml_append(elsectx, aml_or(aml_name("CDW1"), aml_int(4),
+                               aml_name("CDW1")));
     aml_append(elsectx, aml_return(aml_arg(3)));
     aml_append(method, elsectx);
     aml_append(dev, method);