Add overrides for CPU variant used by RS for Flounder.

Change-Id: I4365687170a5f15b46d245edbb6c0c90b82e3573
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 25bb827..be8d1c4 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -59,6 +59,8 @@
 
 # RenderScript
 OVERRIDE_RS_DRIVER := libnvRSDriver.so
+BOARD_OVERRIDE_RS_CPU_VARIANT_32 := cortex-a15
+BOARD_OVERRIDE_RS_CPU_VARIANT_64 := cortex-a57
 
 # Bluetooth
 BOARD_BLUETOOTH_BDROID_BUILDCFG_INCLUDE_DIR := vendor/htc/flounder
@@ -118,3 +120,4 @@
 endif
 
 TARGET_RELEASETOOLS_EXTENSIONS := device/htc/flounder
+