ssl/statem/statem_lib.c: make servercontext/clientcontext arrays of chars...

ssl/statem/statem_lib.c: make servercontext/clientcontext arrays of chars instead of char pointers to fix EBCDIC builds.

Fixes #9869

CLA:trivial
Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NTomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9878)

ssl/statem/statem_lib.c

@@ -169,17 +169,17 @@ static int get_cert_verify_tbs_data(SSL *s, unsigned char *tls13tbs,
                                     void **hdata, size_t *hdatalen)
 {
 #ifdef CHARSET_EBCDIC
-    static const char *servercontext = { 0x54, 0x4c, 0x53, 0x20, 0x31, 0x2e,
+    static const char servercontext[] = { 0x54, 0x4c, 0x53, 0x20, 0x31, 0x2e,
      0x33, 0x2c, 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20, 0x43, 0x65,
      0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x56, 0x65, 0x72,
      0x69, 0x66, 0x79, 0x00 };
-    static const char *clientcontext = { 0x54, 0x4c, 0x53, 0x20, 0x31, 0x2e,
+    static const char clientcontext[] = { 0x54, 0x4c, 0x53, 0x20, 0x31, 0x2e,
      0x33, 0x2c, 0x20, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x20, 0x43, 0x65,
      0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x56, 0x65, 0x72,
      0x69, 0x66, 0x79, 0x00 };
 #else
-    static const char *servercontext = "TLS 1.3, server CertificateVerify";
-    static const char *clientcontext = "TLS 1.3, client CertificateVerify";
+    static const char servercontext[] = "TLS 1.3, server CertificateVerify";
+    static const char clientcontext[] = "TLS 1.3, client CertificateVerify";
 #endif
     if (SSL_IS_TLS13(s)) {
         size_t hashlen;