u-boot mainline supports menuconfig, this patch enables menuconfig for
u-boot using cml1.
u-boot recipe in OE-core handles multi configuration of u-boot using
UBOOT_CONFIG. Since we cannot determine on which u-boot config the
menuconfig should run, the patch limits when UBOOT_CONFIG is not
defined.
Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
