common: Drop asm/ptrace.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-meson/board-common.c b/arch/arm/mach-meson/board-common.c
index 2a93cd1..19e5bfd 100644
--- a/arch/arm/mach-meson/board-common.c
+++ b/arch/arm/mach-meson/board-common.c
@@ -10,6 +10,7 @@
 #include <asm/arch/boot.h>
 #include <env.h>
 #include <asm/cache.h>
+#include <asm/ptrace.h>
 #include <linux/libfdt.h>
 #include <linux/err.h>
 #include <asm/arch/mem.h>