mtd: spi-nor: stm32-quadspi: change license text

-Change the license text with long template.
-Change Copyright to STMicroelectronics.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
1 file changed