[Buildroot] [git commit] configs/hifive_unleashed: add missing uboot custom hash file

[Julien Olivain]

commit: https://git.buildroot.net/buildroot/commit/?id=cac028add66c046b8f93137dbcc41138938e29ea
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Commit [1] enabled BR2_DOWNLOAD_FORCE_CHECK_HASHES for
hifive_unleashed_defconfig and added custom hash files. But it forgot
to add the custom hash for uboot. It was not detected at that time
because the U-Boot version was the same as the default "latest"
version and was providing its hash.

This defconfig fails to build since the default "latest" was bumped
in commit [2].

This commit fixes the issue by adding the missing uboot hash.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/9677167050

[1] https://gitlab.com/buildroot.org/buildroot/-/commit/1ba1055d3da2d98874aae1eedf1983a2ed933605
[2] https://gitlab.com/buildroot.org/buildroot/-/commit/c14ce5346d969e660cc788f2f4d8619b27c805a2

Signed-off-by: Julien Olivain <ju.o at free.fr>
---
 board/sifive/hifive-unleashed/patches/uboot/uboot.hash | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/board/sifive/hifive-unleashed/patches/uboot/uboot.hash b/board/sifive/hifive-unleashed/patches/uboot/uboot.hash
new file mode 100644
index 0000000000..50674352d7
--- /dev/null
+++ b/board/sifive/hifive-unleashed/patches/uboot/uboot.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  cdef7d507c93f1bbd9f015ea9bc21fa074268481405501945abc6f854d5b686f  u-boot-2025.01.tar.bz2