Update liblog header paths after git project move

liblog has moved from system/core/liblog to system/logging/liblog, so
update the path appropriately.

Bug: 170387172
Test: tree hugger
Change-Id: I68f881137ab8cbe91f36b20d4221d63fe3c5fc65
diff --git a/cc/config/global.go b/cc/config/global.go
index 97e423a..a170652 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -205,7 +205,7 @@
 	pctx.PrefixedExistentPathsForSourcesVariable("CommonGlobalIncludes", "-I",
 		[]string{
 			"system/core/include",
-			"system/core/liblog/include",
+			"system/logging/liblog/include",
 			"system/media/audio/include",
 			"hardware/libhardware/include",
 			"hardware/libhardware_legacy/include",