check_all_partition_sizes_log -> .log

So that it can be viewed directly in the web browser.
Test: pass

Change-Id: Ic90a5d1511153a74726f1bdee5d9a058756f2d19
diff --git a/core/Makefile b/core/Makefile
index 95bac40..b5be751 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -3990,7 +3990,7 @@
   $(CHECK_PARTITION_SIZES) $(if $(2),--logfile $(2),-v) $(1)
 endef
 
-check_all_partition_sizes_log := $(call intermediates-dir-for,PACKAGING,check-all-partition-sizes)/check_all_partition_sizes_log
+check_all_partition_sizes_log := $(call intermediates-dir-for,PACKAGING,check-all-partition-sizes)/check_all_partition_sizes.log
 droid_targets: $(check_all_partition_sizes_log)
 $(call dist-for-goals, droid_targets, $(check_all_partition_sizes_log))