imx: fix coding style

Fix checkpatch warning and errors in several i.MX related files.

While at it also address a checkpatch warning at arch/arm/cpu/armv7/mx5/soc.c
regarding the usage of extern in a C file.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/board/logicpd/imx27lite/imx27lite.c b/board/logicpd/imx27lite/imx27lite.c
index 2b273ac..8a5015c 100644
--- a/board/logicpd/imx27lite/imx27lite.c
+++ b/board/logicpd/imx27lite/imx27lite.c
@@ -26,7 +26,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int board_init (void)
+int board_init(void)
 {
 	struct gpio_regs *regs = (struct gpio_regs *)IMX_GPIO_BASE;
 #if defined(CONFIG_SYS_NAND_LARGEPAGE)
@@ -64,7 +64,7 @@
 	return 0;
 }
 
-int dram_init (void)
+int dram_init(void)
 {
 	/* dram_init must store complete ramsize in gd->ram_size */
 	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
@@ -86,7 +86,7 @@
 
 int checkboard(void)
 {
-	puts ("Board: ");
+	puts("Board: ");
 	puts(CONFIG_BOARDNAME);
 	return 0;
 }