refactor(st): change method to get GIC base addresses

GIC DT node structure depends on system architecture, notably around
"reg" property. A generic way to retrieve base address is needed. Use
fdt_node_offset_by_compatible() helper.

Change-Id: Ibb47864bd5e8a76a48b9346fdcf87d31281517ce
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
1 file changed