Revert "Revert "Update makefiles for Java package path.""

This reverts commit a8789f27cb89496675483b83c76f271474085d62.

Change-Id: I69980b580a556188ba868bb096ae1590b01759f5
diff --git a/example/extension/light/2.0/Android.mk b/example/extension/light/2.0/Android.mk
index 2c42dac..deb7a2a 100644
--- a/example/extension/light/2.0/Android.mk
+++ b/example/extension/light/2.0/Android.mk
@@ -20,7 +20,7 @@
 #
 # Build types.hal (Default)
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/Default.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/Default.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
@@ -39,7 +39,7 @@
 #
 # Build types.hal (ExtBrightness)
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/ExtBrightness.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/ExtBrightness.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
@@ -58,7 +58,7 @@
 #
 # Build types.hal (ExtLightState)
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/ExtLightState.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/ExtLightState.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
@@ -77,7 +77,7 @@
 #
 # Build IExtLight.hal
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/IExtLight.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/IExtLight.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IExtLight.hal
@@ -115,7 +115,7 @@
 #
 # Build types.hal (Default)
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/Default.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/Default.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
@@ -134,7 +134,7 @@
 #
 # Build types.hal (ExtBrightness)
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/ExtBrightness.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/ExtBrightness.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
@@ -153,7 +153,7 @@
 #
 # Build types.hal (ExtLightState)
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/ExtLightState.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/ExtLightState.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
@@ -172,7 +172,7 @@
 #
 # Build IExtLight.hal
 #
-GEN := $(intermediates)/android/hardware/example/extension/light/2.0/IExtLight.java
+GEN := $(intermediates)/android/hardware/example/extension/light/V2_0/IExtLight.java
 $(GEN): $(HIDL)
 $(GEN): PRIVATE_HIDL := $(HIDL)
 $(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IExtLight.hal