spi: spi-mem: spi-nxp-fspi: add module license info

Add MODULE_LICENSE info to fix below warning:
WARNING: modpost: missing MODULE_LICENSE() in drivers/spi/spi-nxp-fspi.o

Typo fix in Boris Brezillon last name.

Fixes: a5356aef ("spi: spi-mem: Add driver for NXP FlexSPI controller")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>