refactor(tc): add plat_rse_comms_init

The same way it is done for neoverse_rd, create a plat_rse_comms_init()
function to call rse_comms_init().

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I12f3b8a38a5369decb4b97f8aceeb0dc81cbea28
12 files changed