SPEAr: Enable udc and usb-console support only for usbtty configuration

This patch enables the UDC and usb-console support only for usbtty
configurations

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>

include/configs/spear-common.h

@@ -39,6 +39,7 @@
 #define CONFIG_PHY_RESET_DELAY			10000		/* in usec */
 
 /* USBD driver configuration */
+#if defined(CONFIG_SPEAR_USBTTY)
 #define CONFIG_DW_UDC
 #define CONFIG_USB_DEVICE
 #define CONFIG_USBD_HS
@@ -47,6 +48,8 @@
 #define CONFIG_USBD_PRODUCT_NAME		"SPEAr SoC"
 #define CONFIG_USBD_MANUFACTURER		"ST Microelectronics"
 
+#endif
+
 #define CONFIG_EXTRA_ENV_USBTTY			"usbtty=cdc_acm\0"
 
 /* I2C driver configuration */