drivers: flash: stm32 octospi supports the 4Bytes address mode

Add the 4Bytes program mode to the stm32_ospi driver
to enter 4-Byte Address Mode (SPI_NOR_CMD_4BA) when flash is supporting it.
This is given by the JESD216 SFDP table.
Based on the stm32 qspi driver.

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