The boot source configuration options were depending on U-Boot
configuration options. Let's make it independent and just allow the
user to select whichever boot source is appropriate.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
There no need to depends on BR2_TARGET_AT91BOOTSTRAP when the
configuration options are already inside a if
BR2_TARGET_AT91BOOTSTRAP.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
