Allow adbd to access the qemu device and label /dev/eac correctly.

adbd.te

@@ -2,6 +2,7 @@
 # it lives in the rootfs and has no unique file type.
 type adbd, domain, mlstrustedsubject;
 allow adbd adb_device:chr_file rw_file_perms;
+allow adbd qemu_device:chr_file rw_file_perms;
 allow adbd self:capability { net_raw setgid setuid dac_override sys_boot sys_admin };
 allow adbd rootfs:file entrypoint;
 allow adbd init:process sigchld;

file_contexts

@@ -23,6 +23,7 @@
 /dev/console		u:object_r:console_device:s0
 /dev/cpuctl(/.*)?	u:object_r:cpuctl_device:s0
 /dev/device-mapper	u:object_r:dm_device:s0
+/dev/eac		u:object_r:audio_device:s0
 /dev/full		u:object_r:full_device:s0
 /dev/graphics(/.*)?	u:object_r:graphics_device:s0
 /dev/input(/.*)		u:object_r:input_device:s0