sandbox: switch to dynamic UUIDs

Migrate sandbox over to generating it's capsule update image GUIDs
dynamically from the namespace and board/image info. Update the
reference and tests to use the new GUIDs.

Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/test/py/tests/test_efi_capsule/version.dtso b/test/py/tests/test_efi_capsule/version.dtso
index 07850cc..3aebb5b 100644
--- a/test/py/tests/test_efi_capsule/version.dtso
+++ b/test/py/tests/test_efi_capsule/version.dtso
@@ -8,17 +8,17 @@
 		image1 {
 			lowest-supported-version = <3>;
 			image-index = <1>;
-			image-type-id = "09D7CF52-0720-4710-91D1-08469B7FE9C8";
+			image-type-id = "985F2937-7C2E-5E9A-8A5E-8E063312964B";
 		};
 		image2 {
 			lowest-supported-version = <7>;
 			image-index = <2>;
-			image-type-id = "5A7021F5-FEF2-48B4-AABA-832E777418C0";
+			image-type-id = "9E339473-C2EB-530A-A69B-0CD6BBBED40E";
 		};
 		image3 {
 			lowest-supported-version = <3>;
 			image-index = <1>;
-			image-type-id = "3673B45D-6A7C-46F3-9E60-ADABB03F7937";
+			image-type-id = "46610520-469E-59DC-A8DD-C11832B877EA";
 		};
 	};
 };