defconfig: enable USB_LINK_LAYER_TEST on msm8953

Enable the LVS test driver which is used to validate USB
SuperSpeed link layer compliance when running against a
supported test system.

Change-Id: I05c724e1752257eb0b4cb471b16beb6a66983e1d
Signed-off-by: Pratham Pratap <prathampratap@codeaurora.org>
diff --git a/arch/arm64/configs/msm8953_defconfig b/arch/arm64/configs/msm8953_defconfig
index c869190..09aeb2e 100644
--- a/arch/arm64/configs/msm8953_defconfig
+++ b/arch/arm64/configs/msm8953_defconfig
@@ -481,6 +481,7 @@
 CONFIG_USB_DWC3_MSM=y
 CONFIG_USB_SERIAL=y
 CONFIG_USB_EHSET_TEST_FIXTURE=y
+CONFIG_USB_LINK_LAYER_TEST=y
 CONFIG_NOP_USB_XCEIV=y
 CONFIG_DUAL_ROLE_USB_INTF=y
 CONFIG_USB_MSM_SSPHY_QMP=y