Update makefiles.

Note cleanspec required because of b/38205169 (genrule
doesn't delete output files before building, so when
removing some, they get stale).

Test: power vts test compiles
Change-Id: Ie7ef0fc3d943a75fe898238cf861fb7f99f4146b
Fixes: 35813011
diff --git a/power/1.1/Android.mk b/power/1.1/Android.mk
index 77c5525..16cfcbd 100644
--- a/power/1.1/Android.mk
+++ b/power/1.1/Android.mk
@@ -8,7 +8,7 @@
 LOCAL_MODULE := android.hardware.power-V1.1-java
 LOCAL_MODULE_CLASS := JAVA_LIBRARIES
 
-intermediates := $(local-generated-sources-dir)
+intermediates := $(call local-generated-sources-dir, COMMON)
 
 HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
 
@@ -84,7 +84,7 @@
 LOCAL_MODULE := android.hardware.power-V1.1-java-static
 LOCAL_MODULE_CLASS := JAVA_LIBRARIES
 
-intermediates := $(local-generated-sources-dir)
+intermediates := $(call local-generated-sources-dir, COMMON)
 
 HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)