boards: arm: stm32l562e_dk includes the sdfp table for its octoflash

Moving the SDFP table property from the sample to the device tree
of the stm32l562e_dk disco kit.
The MX52lm51245 Nor octoflash mounted on this boarddoes not
provide its own internal SFDP parameters.
With this patch, the SFDP table is given by the board DTS.
So that the stm32 ospi driver can initialized the  NOR octoflash
correctly with the parameter from that property instead of
relying on the nor octoflash.

Signed-off-by: Francois Ramu <francois.ramu@st.com>