[llvm] [libc][bazel] add rules to build the scanf family (PR #128082)

[Alexey Samsonov via llvm-commits]

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@@ -4611,6 +4611,178 @@ libc_function(
     ],
 )
 
+libc_support_library(
+    name = "scanf_config",
+    hdrs = ["src/stdio/scanf_core/scanf_config.h"],
+    deps = [
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vonosmas wrote:

I think you can just remove empty deps.

https://github.com/llvm/llvm-project/pull/128082