include: avoid useless includes of exec/ headers

Headers in include/exec/ are for the deepest innards of QEMU,
they should almost never be included directly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/dump.c b/dump.c
index a25f509..b34f143 100644
--- a/dump.c
+++ b/dump.c
@@ -23,7 +23,6 @@
 #include "sysemu/memory_mapping.h"
 #include "qapi/error.h"
 #include "qmp-commands.h"
-#include "exec/gdbstub.h"
 
 static uint16_t cpu_convert_to_target16(uint16_t val, int endian)
 {
@@ -268,6 +267,11 @@
     return 0;
 }
 
+static inline int cpu_index(CPUState *cpu)
+{
+    return cpu->cpu_index + 1;
+}
+
 static int write_elf64_notes(DumpState *s)
 {
     CPUArchState *env;