mbedtls_config: add new MBEDTLS_PK_PARSE_EC_COMPRESSED symbol

This includes also:
- auto enabling ECP_LIGHT when MBEDTLS_PK_PARSE_EC_COMPRESSED is
  defined
- replacing ECP_LIGHT guards with PK_PARSE_EC_COMPRESSED in pkparse
- disabling PK_PARSE_EC_COMPRESSED in tests with accelarated EC curves
  (it get disabled also in the reference components because we want
  to achieve test parity)
- remove skipped checks in analyze_outcomes.py

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/include/mbedtls/build_info.h b/include/mbedtls/build_info.h
index cb9582c..4bee955 100644
--- a/include/mbedtls/build_info.h
+++ b/include/mbedtls/build_info.h
@@ -132,7 +132,8 @@
 /* MBEDTLS_ECP_C now consists of MBEDTLS_ECP_LIGHT plus functions for curve
  * arithmetic. As a consequence if MBEDTLS_ECP_C is required for some reason,
  * then MBEDTLS_ECP_LIGHT should be enabled as well. */
-#if defined(MBEDTLS_ECP_C) || defined(MBEDTLS_PK_PARSE_EC_EXTENDED)
+#if defined(MBEDTLS_ECP_C) || defined(MBEDTLS_PK_PARSE_EC_EXTENDED) || \
+    defined(MBEDTLS_PK_PARSE_EC_COMPRESSED)
 #define MBEDTLS_ECP_LIGHT
 #endif