Add filemap events for iorapd

iorapd needs to access these events on-device
through perfetto.

Bug: 122606712
Bug: 72170747
Change-Id: I819dc9b79e85c3e261859d125c680a50737351da

private/genfs_contexts

@@ -213,6 +213,8 @@ genfscon tracefs /events/binder/binder_unlock/                           u:objec
 genfscon tracefs /events/lowmemorykiller/                                u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/sync/                                           u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/fence/                                          u:object_r:debugfs_tracing:s0
+genfscon tracefs /events/filemap/mm_filemap_add_to_page_cache/           u:object_r:debugfs_tracing:s0
+genfscon tracefs /events/filemap/mm_filemap_delete_from_page_cache/      u:object_r:debugfs_tracing:s0
 
 genfscon debugfs /tracing/trace_clock                                            u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/buffer_size_kb                                         u:object_r:debugfs_tracing:s0
@@ -242,6 +244,8 @@ genfscon debugfs /tracing/events/binder/binder_unlock/
 genfscon debugfs /tracing/events/lowmemorykiller/                                u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/events/sync/                                           u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/events/fence/                                          u:object_r:debugfs_tracing:s0
+genfscon debugfs /tracing/events/filemap/mm_filemap_add_to_page_cache/           u:object_r:debugfs_tracing:s0
+genfscon debugfs /tracing/events/filemap/mm_filemap_delete_from_page_cache/      u:object_r:debugfs_tracing:s0
 
 genfscon debugfs /kcov								 u:object_r:debugfs_kcov:s0