Rename DH Family Macros According to PSA Spec

Rename PSA_DH_GROUP_xxx to PSA_DH_FAMILY_xxx, also rename
PSA_KEY_TYPE_GET_GROUP to PSA_KEY_TYPE_DH_GET_FAMILY and rename
psa_dh_group_t to psa_dh_family_t. Old defines are provided in
include/crypto_compat.h for backward compatibility.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/include/psa/crypto_values.h b/include/psa/crypto_values.h
index 3feaa1c..73d7d9d 100644
--- a/include/psa/crypto_values.h
+++ b/include/psa/crypto_values.h
@@ -536,14 +536,14 @@
 #define PSA_KEY_TYPE_DH_GROUP_MASK                  ((psa_key_type_t)0x00ff)
 /** Diffie-Hellman key pair.
  *
- * \param group     A value of type ::psa_dh_group_t that identifies the
+ * \param group     A value of type ::psa_dh_family_t that identifies the
  *                  Diffie-Hellman group to be used.
  */
 #define PSA_KEY_TYPE_DH_KEY_PAIR(group)          \
     (PSA_KEY_TYPE_DH_KEY_PAIR_BASE | (group))
 /** Diffie-Hellman public key.
  *
- * \param group     A value of type ::psa_dh_group_t that identifies the
+ * \param group     A value of type ::psa_dh_family_t that identifies the
  *                  Diffie-Hellman group to be used.
  */
 #define PSA_KEY_TYPE_DH_PUBLIC_KEY(group)               \
@@ -563,8 +563,8 @@
      PSA_KEY_TYPE_DH_PUBLIC_KEY_BASE)
 
 /** Extract the group from a Diffie-Hellman key type. */
-#define PSA_KEY_TYPE_GET_GROUP(type)                            \
-    ((psa_dh_group_t) (PSA_KEY_TYPE_IS_DH(type) ?               \
+#define PSA_KEY_TYPE_DH_GET_FAMILY(type)                        \
+    ((psa_dh_family_t) (PSA_KEY_TYPE_IS_DH(type) ?              \
                        ((type) & PSA_KEY_TYPE_DH_GROUP_MASK) :  \
                        0))
 
@@ -574,7 +574,7 @@
  * 2048, 3072, 4096, 6144, 8192. A given implementation may support
  * all of these sizes or only a subset.
  */
-#define PSA_DH_GROUP_RFC7919            ((psa_dh_group_t) 0x03)
+#define PSA_DH_FAMILY_RFC7919            ((psa_dh_family_t) 0x03)
 
 #define PSA_GET_KEY_TYPE_BLOCK_SIZE_EXPONENT(type)      \
     (((type) >> 8) & 7)