ANDROID: GKI: Add hook symbol to symbol list

Add shrink_node_memcgs() tracepoint symbols to symbol list.

Leaf changes summary: 2 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable

1 Added function:

  [A] 'function int __traceiter_android_vh_shrink_node_memcgs(void*, mem_cgroup*, bool*)'

1 Added variable:

  [A] 'tracepoint __tracepoint_android_vh_shrink_node_memcgs'

Bug: 226482420
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Change-Id: Iff8a2b95a4e891bce814e9a70520368e28b4b5f0