ANDROID: af_unix: Provide ABI fixes for recently introduced 'struct scm_fp_list' attribute 'dead'

Adding new attributes to the ABI protected 'struct scm_fp_list' changes
the offsets of the fields already present in the structure which could
cause issues if modules already have a copy and are unaware of the
changes.  Let's add it to the end of the structure, under the protection
of __GENKSYMS__ as is SOP.

Bug: 404256079
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: If926b8a8bbf293304bbeb7cba66cafe158381fa6

android/abi_gki_aarch64.stg

@@ -76378,6 +76378,12 @@ member {
   type_id: 0x6d7f5ff6
   offset: 3200
 }
+member {
+  id: 0x3bde3edb
+  name: "dead"
+  type_id: 0x6d7f5ff6
+  offset: 16328
+}
 member {
   id: 0x6491a5c4
   name: "dead"
@@ -267019,6 +267025,7 @@ struct_union {
     member_id: 0x042a2402
     member_id: 0x5449f846
     member_id: 0x799ec517
+    member_id: 0x3bde3edb
     member_id: 0x7b11d1cc
     member_id: 0x76d74733
     member_id: 0x11d6bda9

android/abi_gki_aarch64.stg.allowed_breaks

@@ -210,3 +210,6 @@ type 'struct scm_stat' changed
   byte size changed from 4 to 16
   member 'unsigned long nr_unix_fds' was added
 
+type 'struct scm_fp_list' changed
+  member 'bool dead' was added
+

include/net/scm.h

@@ -29,14 +29,12 @@ struct unix_edge;
 struct scm_fp_list {
 	short			count;
 	short			max;
-#ifdef CONFIG_UNIX
-	bool			dead;
-#endif
 	struct user_struct	*user;
 	struct file		*fp[SCM_MAX_FD];
 #ifndef __GENKSYMS__
 #ifdef CONFIG_UNIX
 	bool			inflight;
+	bool			dead;
 	struct list_head	vertices;
 	struct unix_edge        *edges;
 #endif