Rename aosp_beryllium build target to beryllium

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/Android.mk b/Android.mk
index c32d297..dcd9bc5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -20,7 +20,7 @@
 # to only building on ARM if they include assembly. Individual makefiles
 # are responsible for having their own logic, for fine-grained control.
 
-ifneq ($(filter aosp_beryllium, $(TARGET_BOARD_PLATFORM)),)
+ifneq ($(filter beryllium, $(TARGET_BOARD_PLATFORM)),)
 
 LOCAL_PATH := $(call my-dir)