SPEAr: Add SMI NOR partition info in dts files

This patch adds NOR partitions in all SPEAr boards dts files.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Stefan Roese <sr@denx.de>

Signed-off-by: Arnd Bergmann <arnd@arndb.de>