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/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index b043983..ccb70a6 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1046,6 +1046,16 @@
 #define MBEDTLS_PK_PARSE_EC_EXTENDED
 
 /**
+ * \def MBEDTLS_PK_PARSE_EC_COMPRESSED
+ *
+ * Enable the support for parsing public keys of type Short Weierstrass
+ * (MBEDTLS_ECP_DP_SECP_XXX and MBEDTLS_ECP_DP_BP_XXX) which are using the
+ * compressed point format.
+ * Please see MBEDTLS_ECP_PF_COMPRESSED in ecp.h for limitations details.
+ */
+#define MBEDTLS_PK_PARSE_EC_COMPRESSED
+
+/**
  * \def MBEDTLS_ERROR_STRERROR_DUMMY
  *
  * Enable a dummy error function to make use of mbedtls_strerror() in