Haiku system build fix.

overriding ar and flags from BASE_common mainly.
Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NPaul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13438)

Configurations/50-haiku.conf

@@ -7,6 +7,9 @@ my %targets = (
                                               release => "-O2")),
         cflags           => add_before("-DL_ENDIAN -include \$(SRCDIR)/os-dep/haiku.h",
                                        threads("-D_REENTRANT")),
+        AR              => "ar",
+        ARFLAGS         => "qc",
+        HASHBANGPERL    => "/bin/env perl",
         sys_id           => "HAIKU",
         ex_libs          => "-lnetwork",
         perlasm_scheme   => "elf",