mbedtls: Expose MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED config option

This enables software that requires this cipher suite (e.g. OpenThread Border
Router) to be compiled against the shared library rather than a separate copy.

Signed-off-by: Karsten Sperling <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/19489
(cherry picked from commit 97dc9f8dbfde8725ca26ae7ce0f348488e62e29e)
Link: https://github.com/openwrt/openwrt/pull/19839
Signed-off-by: Hauke Mehrtens <[email protected]>

package/libs/mbedtls/Config.in

@@ -84,6 +84,10 @@ config MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
 	bool "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED"
 	default n
 
+config MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
+	bool "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED"
+	default n
+
 comment "Curves - unselect old or less-used curves to reduce binary size"
 
 config MBEDTLS_ECP_DP_SECP192R1_ENABLED

package/libs/mbedtls/Makefile

@@ -53,6 +53,7 @@ MBEDTLS_BUILD_OPTS_CIPHERS= \
   CONFIG_MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED \
   CONFIG_MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED \
   CONFIG_MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED \
+  CONFIG_MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED \
   CONFIG_MBEDTLS_NIST_KW_C \
   CONFIG_MBEDTLS_RIPEMD160_C \
   CONFIG_MBEDTLS_RSA_NO_CRT \