Commit 
2d66c7803595da0d4bcd949825d598575f5de9e6 ("cpuimx27 and mbimx27:
allow fine control of UART4 and SDHC2 usage") added the Kconfig symbol
MACH_EUKREA_CPUIMX27_USEUART4. But it forgot to prepend CONFIG_ to the
use of its macro. Add that prefix now.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
        PE10_PF_UART3_CTS,
        PE11_PF_UART3_RTS,
        /* UART4 */
-#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
+#if !defined(CONFIG_MACH_EUKREA_CPUIMX27_USEUART4)
        PB26_AF_UART4_RTS,
        PB28_AF_UART4_TXD,
        PB29_AF_UART4_CTS,
 
        imx27_add_imx_uart1(&uart_pdata);
        imx27_add_imx_uart2(&uart_pdata);
-#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
+#if !defined(CONFIG_MACH_EUKREA_CPUIMX27_USEUART4)
        imx27_add_imx_uart3(&uart_pdata);
 #endif
 
 
        PE14_PF_UART1_CTS,
        PE15_PF_UART1_RTS,
        /* UART4 */
-#if defined(MACH_EUKREA_CPUIMX27_USEUART4)
+#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USEUART4)
        PB26_AF_UART4_RTS,
        PB28_AF_UART4_TXD,
        PB29_AF_UART4_CTS,
        /* SDHC2 can be used for Wifi */
        imx27_add_mxc_mmc(1, NULL);
 #endif
-#if defined(MACH_EUKREA_CPUIMX27_USEUART4)
+#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USEUART4)
        /* in which case UART4 is also used for Bluetooth */
        imx27_add_imx_uart3(&uart_pdata);
 #endif