boot/Config.in: fix beaglev-ddrinit include after rename

Commit 3b551f68a55d74f (boot/beaglev-ddrlnit: rename to beaglev-ddrinit to
match renamed upstream repo) forgot to update the include in boot/Config.in,
breaking menuconfig.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

boot/Config.in

@@ -6,7 +6,7 @@ source "boot/at91bootstrap3/Config.in"
 source "boot/at91dataflashboot/Config.in"
 source "boot/arm-trusted-firmware/Config.in"
 source "boot/barebox/Config.in"
-source "boot/beaglev-ddrlnit/Config.in"
+source "boot/beaglev-ddrinit/Config.in"
 source "boot/beaglev-secondboot/Config.in"
 source "boot/binaries-marvell/Config.in"
 source "boot/boot-wrapper-aarch64/Config.in"