cgtqmx6eval: fix pad configuration for SPI bus

Use the macro SETUP_IOMUX_PAD(...) rather than imx_iomux_v3_setup_multiple_pads(...) in order to setup
the pin configuration for ECSPI1.

ARRAY_SIZE(pads) provides the wrong size for imx_iomux_v3_setup_multiple_pads(pads, ARRAY_SIZE(pads)) in
case of MX6QDL. In the particular case, the content of GPR12 is overwritten and the IPG/AHB/ATB/ATP clocks
are deactivated. Therefore, the connection to the system via JTAG is not possible anymore. Furthermore,
kernel version 3.0.35 hangs during bootprocess in the function etm_init().

Signed-off-by: Michael Schanz <michael.schanz@congatec.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>

board/congatec/cgtqmx6eval/cgtqmx6eval.c

@@ -404,7 +404,7 @@ static void setup_iomux_uart(void)
 #ifdef CONFIG_MXC_SPI
 static void setup_spi(void)
 {
-	imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
+	SETUP_IOMUX_PADS(ecspi1_pads);
 	gpio_direction_output(IMX_GPIO_NR(3, 19), 0);
 }
 #endif