[Buildroot] [git commit branch/2022.02.x] package/rust: add host-pkgconf dependency

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=dd1942f46a641307c0d6bd69262c7b71c6d9a658
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2022.02.x

Add host-pkgconf dependency to fix the following build failure raised
since commit 4e3be3ae9d4c9f1b0c035eee0c923a724f9a9316:

  run pkg_config fail: "Failed to run `\"/nvmedata/autobuild/instance-6/output-1/per-package/host-rust/host/bin/pkg-config\" \"--libs\" \"--cflags\" \"openssl\"`: No such file or directory (os error 2)"

Fixes:
 - http://autobuild.buildroot.org/results/b046523960079cbf85931b8f67c3b98dd07fbbda

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
(cherry picked from commit 5cd13ec7654e1f34f5b4063ed0d5b15f5697bd66)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/rust/rust.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/rust/rust.mk b/package/rust/rust.mk
index cd8c87b68d..cbd4786f06 100644
--- a/package/rust/rust.mk
+++ b/package/rust/rust.mk
@@ -14,6 +14,7 @@ HOST_RUST_PROVIDES = host-rustc
 
 HOST_RUST_DEPENDENCIES = \
 	toolchain \
+	host-pkgconf \
 	host-python3 \
 	host-rust-bin \
 	host-openssl \