Reference x86 toolchain in its new location

Change-Id: I990b03107d1596a87a8d4cea6973735c60db4c64
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index c27fbb6..9e1d4bd 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -36,7 +36,7 @@
 
 # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
 ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
-TARGET_TOOLCHAIN_ROOT := prebuilt/$(HOST_PREBUILT_TAG)/toolchain/i686-android-linux-4.4.3
+TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/i686-android-linux-4.4.3
 TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/i686-android-linux-
 endif