Fix conditional include of driver module

Signed-off-by: Victor Chong <victor.chong@linaro.org>
Tested-by: Victor Chong <victor.chong@linaro.org> (QEMU with CONFIG_OPTEE=m)
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Tested-by: Joakim Bech <joakim.bech@linaro.org> (QEMU)
diff --git a/hikey.mk b/hikey.mk
index bb2f3fb..a403cdf 100644
--- a/hikey.mk
+++ b/hikey.mk
@@ -273,12 +273,12 @@
 	find $(OPTEE_TEST_OUT_PATH) -type f -name "xtest" | sed 's/\(.*\)/file \/bin\/xtest \1 755 0 0/g' >> $(GEN_ROOTFS_PATH)/filelist-all.txt; \
 	find $(OPTEE_TEST_OUT_PATH) -name "*.ta" | \
 		sed 's/\(.*\)\/\(.*\)/file \/lib\/optee_armtz\/\2 \1\/\2 444 0 0/g' >> $(GEN_ROOTFS_PATH)/filelist-all.txt
-	@if [ -e $(OPTEE_GENDRV_MODULE) ]; then
-		@echo "# OP-TEE device" >> $(GEN_ROOTFS_PATH)/filelist-all.txt
-		@echo "dir /lib/modules 755 0 0" >> $(GEN_ROOTFS_PATH)/filelist-all.txt
-		@echo "dir /lib/modules/$(call KERNEL_VERSION) 755 0 0" >> $(GEN_ROOTFS_PATH)/filelist-all.txt
-		@echo "file /lib/modules/$(call KERNEL_VERSION)/optee.ko $(OPTEE_GENDRV_MODULE) 755 0 0" >> $(GEN_ROOTFS_PATH)/filelist-all.txt
-	@fi
+	@if [ -e $(OPTEE_GENDRV_MODULE) ]; then \
+		echo "# OP-TEE device" >> $(GEN_ROOTFS_PATH)/filelist-all.txt; \
+		echo "dir /lib/modules 755 0 0" >> $(GEN_ROOTFS_PATH)/filelist-all.txt; \
+		echo "dir /lib/modules/$(call KERNEL_VERSION) 755 0 0" >> $(GEN_ROOTFS_PATH)/filelist-all.txt; \
+		echo "file /lib/modules/$(call KERNEL_VERSION)/optee.ko $(OPTEE_GENDRV_MODULE) 755 0 0" >> $(GEN_ROOTFS_PATH)/filelist-all.txt; \
+	fi
 
 update_rootfs: optee-client xtest aes-perf sha-perf strace filelist-all linux-gen_init_cpio
 	cd $(GEN_ROOTFS_PATH); \