utils/update-rust: fix 'following' typo

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

utils/update-rust

@@ -27,7 +27,7 @@ RUST_HOSTS = [
 #       BR2_PACKAGE_HOST_RUSTC_TARGET_TIER2_PLATFORMS
 # - package/rustc/rustc.mk:
 #       RUSTC_TARGET_NAME
-# and check whether one of the follwoing needs updating:
+# and check whether one of the following needs updating:
 # - package/rustc/Config.in.host:
 #       BR2_PACKAGE_HOST_RUSTC_ARCH
 #       BR2_PACKAGE_HOST_RUSTC_ABI