Move platform constraints to bazel_common_rules.

This enables sharing of platform constraints between platform and kernel builds.

Bug: 304594734

Test: treehugger
Change-Id: I48091eeaf2e529c3f180ba056da3935911868b14
diff --git a/xml/xml_conversion_test.go b/xml/xml_conversion_test.go
index 6606ddc..c052b44 100644
--- a/xml/xml_conversion_test.go
+++ b/xml/xml_conversion_test.go
@@ -121,8 +121,8 @@
 				"filename_from_src": `True`,
 				"dir":               `"etc"`,
 				"src": `select({
-        "//build/bazel/platforms/arch:arm": "barSrc",
-        "//build/bazel/platforms/arch:arm64": "bazSrc",
+        "//build/bazel_common_rules/platforms/arch:arm": "barSrc",
+        "//build/bazel_common_rules/platforms/arch:arm64": "bazSrc",
         "//conditions:default": None,
     })`,
 			})}})