am33xx: Rework config_io_ctrl slightly

This function sets a number of related registers to the same value (the
registers in question all have the same field descriptions and are
related in operation).  Rather than defining a struct and setting the
value repeatedly, just pass in the value.

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
index 7806e1b..ebd3077 100644
--- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h
+++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h
@@ -174,20 +174,9 @@
 };
 
 /**
- * Encapsulates DDR CMD & DATA io control registers.
- */
-struct ddr_ioctrl {
-	unsigned long cmd1ctl;
-	unsigned long cmd2ctl;
-	unsigned long cmd3ctl;
-	unsigned long data1ctl;
-	unsigned long data2ctl;
-};
-
-/**
  * Configure DDR io control registers
  */
-void config_io_ctrl(struct ddr_ioctrl *ioctrl);
+void config_io_ctrl(unsigned long val);
 
 struct ddr_ctrl {
 	unsigned int ddrioctrl;