docs/misra: exclude three more files

These files should not conform to MISRA guidelines at the moment,
therefore they are added to the exclusion list.

Signed-off-by: Nicola Vetrini <nicola.vetrini@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

docs/misra/exclude-list.json

@@ -145,6 +145,10 @@
             "rel_path": "common/zstd/*",
             "comment": "Imported from Linux, ignore for now"
         },
+        {
+            "rel_path": "common/symbols-dummy.c",
+            "comment": "The resulting code is not included in the final Xen binary, ignore for now"
+        },
         {
             "rel_path": "crypto/*",
             "comment": "Origin is external and documented in crypto/README.source"
@@ -189,6 +193,14 @@
             "rel_path": "include/acpi/acpixf.h",
             "comment": "Imported from Linux, ignore for now"
         },
+        {
+          "rel_path": "include/acpi/acexcep.h",
+          "comment": "Imported from Linux, ignore for now"
+        },
+        {
+          "rel_path": "include/acpi/acglobal.h",
+          "comment": "Imported from Linux, ignore for now"
+        },
         {
             "rel_path": "include/xen/acpi.h",
             "comment": "Imported from Linux, ignore for now"