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/powerpc/cpu/mpc83xx/interrupts.c b/arch/powerpc/cpu/mpc83xx/interrupts.c
index 8d525dc..d04f31d 100644
--- a/arch/powerpc/cpu/mpc83xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc83xx/interrupts.c
@@ -11,6 +11,7 @@
 #include <irq_func.h>
 #include <mpc83xx.h>
 #include <asm/processor.h>
+#include <asm/ptrace.h>
 
 DECLARE_GLOBAL_DATA_PTR;