FVP QEMU: Update with new TA dev kit name

Update with new TA dev kit name for FVP and QEMU.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/fvp.mk b/fvp.mk
index 8aac140..1d40793 100644
--- a/fvp.mk
+++ b/fvp.mk
@@ -10,7 +10,7 @@
 CROSS_COMPILE_S_USER	?= "$(CCACHE)$(AARCH32_CROSS_COMPILE)"
 CROSS_COMPILE_S_KERNEL	?= "$(CCACHE)$(AARCH32_CROSS_COMPILE)"
 OPTEE_OS_BIN		?= $(OPTEE_OS_PATH)/out/arm-plat-vexpress/core/tee.bin
-OPTEE_OS_TA_DEV_KIT_DIR	?= $(OPTEE_OS_PATH)/out/arm-plat-vexpress/export-user_ta
+OPTEE_OS_TA_DEV_KIT_DIR	?= $(OPTEE_OS_PATH)/out/arm-plat-vexpress/export-ta_arm32
 
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 # Paths to git projects and various binaries