ANDROID: fix up struct sk_buf ABI breakage

In commit 04df9719 ("io_uring/af_unix: defer registered files gc to
io_uring release"), a new field is added to struct sk_buf.  We need that
new field to resolve real problems, so move it to the padded area that
we had reserved for these types of issues.

Update the .xml file to handle the change in fields for the padding
structure, which is an abi-safe change.

Leaf changes summary: 1 artifact changed (1 filtered out)
Changed leaf types summary: 1 (1 filtered out) leaf types changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

'struct sk_buff at skbuff.h:691:1' changed:
  type size hasn't changed
  there are data member changes:
    data member u64 android_kabi_reserved1 at offset 1472 (in bits) became anonymous data member 'union {struct {__u8 scm_io_uring; __u8 android_kabi_reserved1_padding1; __u16 android_kabi_reserved1_padding2; __u32 android_kabi_reserved1_padding3;}; struct {u64 android_kabi_reserved1;}; union {};}'
  3582 impacted interfaces

Bug: 161946584
Fixes: 04df9719 ("io_uring/af_unix: defer registered files gc to io_uring release")
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9f99d85c95d78c688c4c9e88562863a1795e7b3a