LS 16550: Use generic console_t data structure

Since now the generic console_t structure holds the UART base address as
well, let's use that generic location and drop the UART driver specific
data structure at all.

Change-Id: Ifd6aff1064ba1c3c029cdd8a83f715f7a9976db5
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/plat/layerscape/common/ls_bl2_setup.c b/plat/layerscape/common/ls_bl2_setup.c
index 35f42e1..6ca66bd 100644
--- a/plat/layerscape/common/ls_bl2_setup.c
+++ b/plat/layerscape/common/ls_bl2_setup.c
@@ -23,7 +23,7 @@
  ******************************************************************************/
 void ls_bl2_early_platform_setup(meminfo_t *mem_layout)
 {
-	static console_ls_16550_t console;
+	static console_t console;
 
 	/* Initialize the console to provide early debug support */
 	console_ls_16550_register(LS_TF_UART_BASE, LS_TF_UART_CLOCK,