TLS: include dummy cert bundle in mbetls build

  The dummy bundle will be overridden at runtime by the one stored in cert partition

Author: pennam

data/dummy.pem

@@ -0,0 +1,15 @@
+Dummy
+==================
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----

sdkconfig

@@ -1050,10 +1050,11 @@ CONFIG_MBEDTLS_SSL_KEEP_PEER_CERTIFICATE=y
 # Certificate Bundle
 #
 CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
-CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL=y
+# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL is not set
 # CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_CMN is not set
-# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_NONE is not set
-# CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE is not set
+CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_NONE=y
+CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE=y
+CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE_PATH="data/dummy.pem"
 CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_MAX_CERTS=200
 # end of Certificate Bundle