[PATCH 1/2] qemu: Support MULTI_CONSOLE_API

Include missing plat_helpers.S into pl011_console.S, to build successfully
when MULTI_CONSOLE_API is enabled.

Signed-off-by: Michalis Pappas <mpappas@fastmail.fm>
diff --git a/drivers/arm/pl011/aarch64/pl011_console.S b/drivers/arm/pl011/aarch64/pl011_console.S
index 6f2510a..448501a 100644
--- a/drivers/arm/pl011/aarch64/pl011_console.S
+++ b/drivers/arm/pl011/aarch64/pl011_console.S
@@ -6,6 +6,7 @@
 #include <arch.h>
 #include <asm_macros.S>
 #include <assert_macros.S>
+#include <console_macros.S>
 #include <pl011.h>
 
 /*