Implement SUCI Profile Scheme A for 5G UE

Extend UICC configuration parsing to provide: routing_indicator,
protection_scheme, home_network_public_key, and home_network_public_key_id.
Use the protection_scheme value to decide what SUCI Profile Scheme to
apply during SUCI generation. Add support for Profile Scheme A which
provides ECIES-based encryption using Curve25519 and X9.63 KDF as outlined
in TS 33.501 Section C.3.4.1 Profile A.

When a configuration file specifies an unsupported Profile Scheme,
the NAS layer triggers a fatal error. This occurs either because
Profile Scheme B is unimplemented or the build uses OpenSSL < 3.0,
which lacks Curve25519 and X9.63 KDF support, ensuring users are
informed of the incompatibility.

common/utils/utils.h

@@ -123,6 +123,8 @@ static inline void *malloc_or_fail(size_t size)
 int hex_char_to_hex_value (char c);
 // Converts an hexadecimal ASCII coded string into its value.**
 int hex_string_to_hex_value (uint8_t *hex_value, const char *hex_string, int size);
+// Converts a decimal ASCII coded string into its BCD encoded value.
+int digit_string_to_bcd_value(uint8_t *bcd_value, const char *digit_string, int size);
 
 /* Map task id to printable name. */
 typedef struct {