Merged TI feature rpmsg into ti-linux-5.4.y

TI-Feature: rpmsg
TI-Branch: rpmsg-ti-linux-5.4.y-intg

* 'rpmsg-ti-linux-5.4.y-intg' of git://git.ti.com/rpmsg/rpmsg

:
  uapi: fix linux/rpmsg_rpc.h userspace compilation errors

Signed-off-by: LCPD Auto Merger <lcpd_integration@list.ti.com>