boot/uboot: fix kconfig with per-package directories and host-make

If PER_PACKAGE_DIRECTORIES=Y and using host-make package (because
BR2_FORCE_HOST_BUILD=Y or local make is too old) .stamp_dotconfig
target needs per-package/uboot/host/bin/host-make that doesn't
exist yet.

Add host-make into UBOOT_KCONFIG_DEPENDENCIES.

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 3cf8173e5c3d23c3b147a3a083082409f09869ee)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

boot/uboot/uboot.mk

@@ -491,6 +491,7 @@ $(eval $(generic-package))
 else ifeq ($(BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG),y)
 UBOOT_MAKE_ENV = $(TARGET_MAKE_ENV)
 UBOOT_KCONFIG_DEPENDENCIES = \
+	$(BR2_MAKE_HOST_DEPENDENCY) \
 	$(BR2_BISON_HOST_DEPENDENCY) \
 	$(BR2_FLEX_HOST_DEPENDENCY)
 $(eval $(kconfig-package))