Add missing psa_pake_cipher_suite_init()

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index 79a7dc0..a0d6feb 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -1153,6 +1153,10 @@
  */
 typedef struct psa_pake_cipher_suite_s psa_pake_cipher_suite_t;
 
+/** Return an initial value for a PAKE cipher suite object.
+ */
+static psa_pake_cipher_suite_t psa_pake_cipher_suite_init(void);
+
 /** Retrieve the PAKE algorithm from a PAKE cipher suite.
  *
  * This function may be declared as `static` (i.e. without external
@@ -1803,6 +1807,12 @@
     } ctx;
 };
 
+static inline struct psa_pake_cipher_suite_s psa_pake_cipher_suite_init(void)
+{
+    const struct psa_pake_cipher_suite_s v = PSA_PAKE_CIPHER_SUITE_INIT;
+    return(v);
+}
+
 /* This only zeroes out the first byte in the union, the rest is unspecified. */
 #define PSA_PAKE_OPERATION_INIT {0, {0}}
 static inline struct psa_pake_operation_s psa_pake_operation_init(void)