mbedtls: add MSCode parser porting layer

Add porting layer for MSCode on top of MbedTLS ASN1 library.
Introduce _MBEDTLS kconfigs for MSCode MbedTLS implementation.

Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/mbedtls/Kconfig b/lib/mbedtls/Kconfig
index 189bb31..fd7263f 100644
--- a/lib/mbedtls/Kconfig
+++ b/lib/mbedtls/Kconfig
@@ -303,6 +303,7 @@
 		ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	select X509_CERTIFICATE_PARSER_MBEDTLS if X509_CERTIFICATE_PARSER
 	select PKCS7_MESSAGE_PARSER_MBEDTLS if PKCS7_MESSAGE_PARSER
+	select MSCODE_PARSER_MBEDTLS if MSCODE_PARSER
 	select SPL_ASYMMETRIC_PUBLIC_KEY_MBEDTLS if \
 		SPL_ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	help
@@ -333,6 +334,14 @@
 	  This option chooses MbedTLS certificate library for PKCS7 message
 	  parser.
 
+config MSCODE_PARSER_MBEDTLS
+	bool "MS authenticode parser with MbedTLS certificate library"
+	depends on MBEDTLS_LIB_X509 && MSCODE_PARSER
+	select ASN1_DECODER_MBEDTLS
+	help
+	  This option chooses MbedTLS certificate library for MS authenticode
+	  parser.
+
 if SPL
 
 config SPL_ASYMMETRIC_PUBLIC_KEY_MBEDTLS