libhardware: make local_time_hal vendor only

Limit AOSP usage of historical HAL implementation interface to
avoid mistakes.

Bug: 37280010
Test: build
Change-Id: Ibd8be777cf6752054dda06e44b5d7c61197549f5
diff --git a/include/hardware/local_time_hal.h b/include/hardware/local_time_hal.h
deleted file mode 120000
index 27f4315..0000000
--- a/include/hardware/local_time_hal.h
+++ /dev/null
@@ -1 +0,0 @@
-../../include_all/hardware/local_time_hal.h
\ No newline at end of file
diff --git a/include_all/hardware/local_time_hal.h b/include_vendor/hardware/local_time_hal.h
similarity index 100%
rename from include_all/hardware/local_time_hal.h
rename to include_vendor/hardware/local_time_hal.h