[U-Boot] [PATCH 1/2] kbuild: make arch-dtbs target PHONY

[Stephen Warren]

On 2/26/19 12:20 PM, Stephen Warren wrote:
> From: Stephen Warren <swarren at nvidia.com>
> 
> Without this, the arch-dtbs target only gets evaluated when building
> U-Boot the first time, not when re-building (incrementally building)
> U-Boot. Thus incremental builds ignore changes to DTB files.

Commit b630d57d0ab4 "clk: Add fixed-factor clock driver", which was 
recently applied to u-boot/master, also triggers this same issue. It'd 
be nice to get this fix applied ASAP. Thanks!