Move libblas_name/liblapack_name to after Sys module

(cherry picked from commit f2d7055)

Author: giordano

base/Base.jl

@@ -186,11 +186,6 @@ end
 include(strcat((length(Core.ARGS)>=2 ? Core.ARGS[2] : ""), "build_h.jl"))     # include($BUILDROOT/base/build_h.jl)
 include(strcat((length(Core.ARGS)>=2 ? Core.ARGS[2] : ""), "version_git.jl")) # include($BUILDROOT/base/version_git.jl)
 
-# These used to be in build_h.jl and are retained for backwards compatibility.
-# NOTE: keep in sync with `libblastrampoline_jll.libblastrampoline`.
-const libblas_name = "libblastrampoline" * (Sys.iswindows() ? "-5" : "")
-const liblapack_name = libblas_name
-
 # numeric operations
 include("hashing.jl")
 include("rounding.jl")
@@ -291,6 +286,11 @@ include("sysinfo.jl")
 include("libc.jl")
 using .Libc: getpid, gethostname, time
 
+# These used to be in build_h.jl and are retained for backwards compatibility.
+# NOTE: keep in sync with `libblastrampoline_jll.libblastrampoline`.
+const libblas_name = "libblastrampoline" * (Sys.iswindows() ? "-5" : "")
+const liblapack_name = libblas_name
+
 # Logging
 include("logging.jl")
 using .CoreLogging