bootloader64.mk: use updated linaro aarch64 gcc path

Change-Id: I528c6870ca33dc82a783837884521944e9511481
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/bootloader64.mk b/bootloader64.mk
index 95e36e0..f543656 100644
--- a/bootloader64.mk
+++ b/bootloader64.mk
@@ -9,7 +9,7 @@
 	ln -sf $(abspath $(TOP)/kernel/arch/arm64/boot/dts/rtsm_ve-aemv8a.dts) $(TOP)/boot-wrapper/rtsm_ve-aemv8a.dts
 	ln -sf $(abspath $(INSTALLED_KERNEL_TARGET)) $(TOP)/boot-wrapper/Image
 	ln -sf $(abspath $(INSTALLED_RAMDISK_TARGET)) $(TOP)/boot-wrapper/filesystem.cpio.gz
-	PATH=$(abspath $(TOP)/gcc-linaro-aarch64-linux-gnu-4.7/bin):$(PATH) && \
+	PATH=$(abspath $(TOP)/gcc-linaro-aarch64-linux-gnu/bin):$(PATH) && \
 	$(MAKE) -C $(TOP)/boot-wrapper CROSS_COMPILE=$(KERNEL_TOOLS_PREFIX)
 	@mkdir -p $(dir $@)
 	$(ACP) -fpt $(TOP)/boot-wrapper/linux-system.axf $@