Add file context for /dev/logbuffer_tcpm

/dev/logbuffer_tcpm gets accessed by dumpstate while bugreport
generation.

(Port of ag/15019635)

Bug: 189792358
Signed-off-by: Kyle Tso <kyletso@google.com>
Change-Id: Id73f7c884f45364b5386a9fe13900cb94d914520
diff --git a/whitechapel_pro/file_contexts b/whitechapel_pro/file_contexts
index 0787e3d..346eb11 100644
--- a/whitechapel_pro/file_contexts
+++ b/whitechapel_pro/file_contexts
@@ -19,6 +19,7 @@
 /dev/umts_rfs0                                                u:object_r:radio_device:s0
 /dev/umts_dm0                                                 u:object_r:radio_device:s0
 /dev/umts_router                                              u:object_r:radio_device:s0
+/dev/logbuffer_tcpm                                           u:object_r:logbuffer_device:s0
 /dev/sys/block/bootdevice(/.*)?                               u:object_r:bootdevice_sysdev:s0
 /dev/socket/chre                                              u:object_r:chre_socket:s0
 /dev/block/sda                                                u:object_r:sda_block_device:s0