This feature was added in commit d07e6b7071 ("boot/uboot/uboot.mk: add
pmufw.elf support"), document it in kconfig.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit e1e3050416)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>