ti_config_fragments: rpmsg: Add keystone-dsp-mem and UIO modules

Add the keystone-dsp-mem module and UIO core modules to the rpmsg
defconfig fragment to enable the user-land Multi Proc Manager (MPM)
based remoteproc usecases on Keystone platforms.

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

ti_config_fragments/ipc.cfg

@@ -16,3 +16,9 @@ CONFIG_KEYSTONE_REMOTEPROC=m
 # RPMsg
 CONFIG_RPMSG_VIRTIO=m
 CONFIG_RPMSG_PROTO=m
+
+# DSP Memory Mapper for Keystone MPM
+CONFIG_KEYSTONE_DSP_MEM=m
+
+# UIO Module
+CONFIG_UIO=m