build: Add default/legacy Power HAL

Change-Id: Ifa1e87c2f45dab3bb7aa07db12c8cfb5a8a38063
Signed-off-by: Todd Poynor <toddpoynor@google.com>
diff --git a/target/product/generic_no_telephony.mk b/target/product/generic_no_telephony.mk
index 2fa42f8..2cd26d4 100644
--- a/target/product/generic_no_telephony.mk
+++ b/target/product/generic_no_telephony.mk
@@ -58,7 +58,8 @@
 PRODUCT_PACKAGES += \
     audio.primary.default \
     audio_policy.default \
-    local_time.default
+    local_time.default \
+    power.default
 
 PRODUCT_COPY_FILES := \
         system/bluetooth/data/audio.conf:system/etc/bluetooth/audio.conf \