acpi: remerge uacpi as inhouse

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

libs/uacpi/tests/test-cases/references-3.asl

@@ -0,0 +1,23 @@
+// Name: Call-by-value w/ Store() modifies strings through a reference
+// Expect: str => WHY?
+// NOTE:
+// This test seems bogus but it's actually corrrect, it produces
+// the same output on NT.
+
+DefinitionBlock ("", "DSDT", 2, "uTEST", "TESTTABL", 0xF0F0F0F0)
+{
+    Method (TEST, 1, NotSerialized)
+    {
+        Local0 = RefOf(Arg0)
+
+        // WHY? in little-endian ASCII
+        Local0 = 0x3F594857
+    }
+
+    Method (MAIN, 0, NotSerialized)
+    {
+        Local0 = "MyST"
+        TEST(Local0)
+        Return (Local0)
+    }
+}