Change to add the 4.4.0 toolchain directory to PATH.

Since we have switched the default toolchain from 4.2.1 to 4.4.0,
we need to change the paths to add from 4.2.1 to 4.4.0.
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 31901e9..0ee7cfc 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -270,7 +270,7 @@
 	ABP:=$(ABP):$(TARGET_OUT_EXECUTABLES)
 else
 	# this should be copied to HOST_OUT_EXECUTABLES instead
-	ABP:=$(ABP):$(PWD)/prebuilt/$(HOST_PREBUILT_TAG)/toolchain/arm-eabi-4.2.1/bin
+	ABP:=$(ABP):$(PWD)/prebuilt/$(HOST_PREBUILT_TAG)/toolchain/arm-eabi-4.4.0/bin
 endif
 ANDROID_BUILD_PATHS := $(ABP)
 ANDROID_PREBUILTS := prebuilt/$(HOST_PREBUILT_TAG)
@@ -335,5 +335,3 @@
 $(info   BUILD_ID=$(BUILD_ID))
 $(info ============================================)
 endif
-
-