qcom_defconfig: enable OF_UPSTREAM_BUILD_VENDOR

A single U-Boot binary can be run on many different Qualcomm boards just
by booting with a different DTB.

Simplify the build process for this by enabling OF_UPSTREAM_BUILD_VENDOR
so that all the DTBs will be available after building U-Boot once.

Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Christopher Obbard <christopher.obbard@linaro.org>
Link: https://lore.kernel.org/r/20250328104011.1837872-1-caleb.connolly@linaro.org
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
1 file changed