linux-yocto: add vfat KERNEL_FEATURE when MACHINE_FEATURES include vfat
If a machine has vfat in its MACHINE_FEATURES, we can ensure that the kernel has support by enabling the associated KERNEL_FEATURE. This partially addresses Yocto bug 14470. Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>