allow access fastrpc total_dma_kb sysfs

This helps understand fastrpc dma buffer size

Bug: 168084904
Test: boot
Signed-off-by: Martin Liu <liumartin@google.com>
Merged-In: I3a8a4511f944f41049c80b60a6dc95fabeef9bd2
Change-Id: I3a8a4511f944f41049c80b60a6dc95fabeef9bd2
diff --git a/vendor/google/hal_dumpstate_impl.te b/vendor/google/hal_dumpstate_impl.te
index 9755782..0bedd3f 100644
--- a/vendor/google/hal_dumpstate_impl.te
+++ b/vendor/google/hal_dumpstate_impl.te
@@ -134,6 +134,9 @@
 allow hal_dumpstate_impl sysfs_msm_wlan:dir r_dir_perms;
 allow hal_dumpstate_impl sysfs_power_stats:file r_file_perms;
 
+#Dumpstats fastrpc buffer
+allow hal_dumpstate_impl sysfs_fastrpc:file r_file_perms;
+
 # Allow to access eSIM status
 allow hal_dumpstate_impl sysfs_esim:file r_file_perms;