mxs: Reowork SPL to use 'mxs' prefix for methods

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/board/bluegiga/apx4devkit/spl_boot.c b/board/bluegiga/apx4devkit/spl_boot.c
index 53e20da..f7dbe41 100644
--- a/board/bluegiga/apx4devkit/spl_boot.c
+++ b/board/bluegiga/apx4devkit/spl_boot.c
@@ -145,13 +145,13 @@
 
 void board_init_ll(void)
 {
-	mx28_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
+	mxs_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
 
 	/* switch LED on */
 	gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
 }
 
-void mx28_adjust_memory_params(uint32_t *dram_vals)
+void mxs_adjust_memory_params(uint32_t *dram_vals)
 {
 	/*
 	 * All address lines are routed from CPU to memory chip.