ti_config_fragments: v8_rpmsg: Enable rpmsg-proto module

Add support to build the rpmsg sockets driver "rpmsg-proto"
explicitly for K3 AM65x platforms. This enables the TI MessageQ
IPC stack to be used with the MCU R5F remote processors on
AM65x SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>

ti_config_fragments/v8_ipc.cfg

@@ -19,4 +19,5 @@ CONFIG_TI_K3_R5_REMOTEPROC=m
 
 # RPMsg
 CONFIG_RPMSG_VIRTIO=m
+CONFIG_RPMSG_PROTO=m
 CONFIG_RPMSG_PRU=m