refactor(st-ddr): remove name from stm32mp_ddr_reg_desc

It was only used for an error trace, with little added value. This
allows some gains in DDR driver data size.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I02e2fc75efd90ff188e62f39850b9bd4c3af1649
3 files changed