arm: u8500: Remove <common.h> and add needed includes

Remove <common.h> from all mach-u8500 files and when needed add missing
include files directly.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arch/arm/mach-u8500/cache.c

@@ -3,7 +3,7 @@
  * Copyright (C) 2019 Stephan Gerhold <stephan@gerhold.net>
  */
 
-#include <common.h>
+#include <config.h>
 #include <cpu_func.h>
 #include <asm/armv7.h>
 #include <asm/cache.h>

arch/arm/mach-u8500/cpuinfo.c

@@ -3,7 +3,6 @@
  * Copyright (C) 2019 Stephan Gerhold <stephan@gerhold.net>
  */
 
-#include <common.h>
 #include <init.h>
 #include <asm/io.h>