misc: Gate sys/idt.h include in entry.s2.c behind x86 check
diff --git a/common/entry.s2.c b/common/entry.s2.c
index 9de0697f..b553083c 100644
--- a/common/entry.s2.c
+++ b/common/entry.s2.c
@@ -21,7 +21,9 @@
#include <pxe/pxe.h>
#include <pxe/tftp.h>
#include <drivers/disk.h>
-#include <sys/idt.h>
+#if defined (__x86_64__) || defined (__i386__)
+# include <sys/idt.h>
+#endif
#include <sys/cpu.h>
struct volume *boot_volume;
