Rename the PSA driver context structure headers to _primitives

This is a preparatory step in order to be able to organize the include
chain from crypto_struct in such a way that the MAC operation structure
for the PSA 'software' driver can make use of the hash operation structure.

Conceptually:
* Primitives:
  * Hash
  * Cipher
* Composites:
  * AEAD (can use cipher)
  * MAC (can use cipher and/or hash)

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 8ac7ce1..5665fa5 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -77,7 +77,7 @@
 #include "mbedtls/gcm.h"
 
 /* Include the context definition for the compiled-in drivers */
-#include "psa/crypto_driver_contexts.h"
+#include "psa/crypto_driver_contexts_primitives.h"
 
 struct psa_hash_operation_s
 {