Add support for /product-services partition

This is an adaptation of Icc4f8c16bc389fe20db680849f311d02df1299c3, to
support modules that are installed on the /product-services partition.

Bug: 80741439
Test: m -j both with and without enabling the new partition
Change-Id: I72b335ad38baff5848cd3da7489343f8cf98ff16
diff --git a/android/paths.go b/android/paths.go
index 31c5977..c9e7150 100644
--- a/android/paths.go
+++ b/android/paths.go
@@ -961,6 +961,8 @@
 			partition = ctx.DeviceConfig().OdmPath()
 		} else if ctx.ProductSpecific() {
 			partition = ctx.DeviceConfig().ProductPath()
+		} else if ctx.ProductServicesSpecific() {
+			partition = ctx.DeviceConfig().ProductServicesPath()
 		} else {
 			partition = "system"
 		}