package/libcurl: fix build with mbedtls

Add upstream patch to fix compatibility with mbedtls version 2.28.x, which
is broken since commit 50bdb2a3b7 (package/libcurl: bump version to 8.8.0).

Fixes:
http://autobuild.buildroot.net/results/66ba878386e4e478645edb6a282e82820b8dad7f
http://autobuild.buildroot.net/results/7a4d9595197cf23080a23dfe9bc0e60b8145af6e
http://autobuild.buildroot.net/results/9add7283813388daa95b16ef76acb3c4e9ea7c2f

[Peter: mention when this issue was introduced]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libcurl/0001-mbedtls-check-version-for-cipher-id.patch

@@ -0,0 +1,56 @@
+From 0c4b4c1e93c8e869af230090f32346fdfd548f21 Mon Sep 17 00:00:00 2001
+From: Stefan Eissing <stefan@eissing.org>
+Date: Wed, 22 May 2024 14:44:56 +0200
+Subject: [PATCH] mbedtls: check version for cipher id
+
+mbedtls_ssl_get_ciphersuite_id_from_ssl() seems to have been added in
+mbedtls 3.2.0. Check for that version.
+
+Closes #13749
+
+Signed-off-by: Baruch Siach <baruch@tkos.co.il>
+Upstream: https://github.com/curl/curl/commit/0c4b4c1e93c8e869af230090f32346fdfd548f21
+---
+ lib/vtls/mbedtls.c | 19 ++++++++++++-------
+ 1 file changed, 12 insertions(+), 7 deletions(-)
+
+diff --git a/lib/vtls/mbedtls.c b/lib/vtls/mbedtls.c
+index ec0b10dd9a9f..98a4ea01b183 100644
+--- a/lib/vtls/mbedtls.c
++++ b/lib/vtls/mbedtls.c
+@@ -902,8 +902,6 @@ mbed_connect_step2(struct Curl_cfilter *cf, struct Curl_easy *data)
+     (struct mbed_ssl_backend_data *)connssl->backend;
+   struct ssl_primary_config *conn_config = Curl_ssl_cf_get_primary_config(cf);
+   const mbedtls_x509_crt *peercert;
+-  char cipher_str[64];
+-  uint16_t cipher_id;
+ #ifndef CURL_DISABLE_PROXY
+   const char * const pinnedpubkey = Curl_ssl_cf_is_proxy(cf)?
+     data->set.str[STRING_SSL_PINNEDPUBLICKEY_PROXY]:
+@@ -932,11 +930,18 @@ mbed_connect_step2(struct Curl_cfilter *cf, struct Curl_easy *data)
+     return CURLE_SSL_CONNECT_ERROR;
+   }
+ 
+-  cipher_id = (uint16_t)
+-              mbedtls_ssl_get_ciphersuite_id_from_ssl(&backend->ssl);
+-  mbed_cipher_suite_get_str(cipher_id, cipher_str, sizeof(cipher_str), true);
+-  infof(data, "mbedTLS: Handshake complete, cipher is %s", cipher_str);
+-
++#if MBEDTLS_VERSION_NUMBER >= 0x03020000
++  {
++    char cipher_str[64];
++    uint16_t cipher_id;
++    cipher_id = (uint16_t)
++                mbedtls_ssl_get_ciphersuite_id_from_ssl(&backend->ssl);
++    mbed_cipher_suite_get_str(cipher_id, cipher_str, sizeof(cipher_str), true);
++    infof(data, "mbedTLS: Handshake complete, cipher is %s", cipher_str);
++  }
++#else
++  infof(data, "mbedTLS: Handshake complete");
++#endif
+   ret = mbedtls_ssl_get_verify_result(&backend->ssl);
+ 
+   if(!conn_config->verifyhost)
+-- 
+2.43.0
+