Address review: set keyInstalled in HW port key setup (F-6151)

The keyInstalled guard added to the shared aes.c mode functions is only
set by aes.c's own key schedule and the RISC-V port. Ports that ship
their own compile-time wc_AesSetKey/wc_AesGcmSetKey left keyInstalled at
0, so any AES mode that falls through to a guarded aes.c path returned
BAD_FUNC_ARG after a correct key setup.

Set keyInstalled at the key-install point of the affected ports so the
shared mode guards accept a validly-keyed context:
- silabs, af_alg, devcrypto, ti, caam: wc_AesSetKey
- af_alg, kcapi: wc_AesGcmSetKey

wolfcrypt/src/port/af_alg/afalg_aes.c

@@ -146,6 +146,8 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
 #endif
     aes->keylen = keylen;
     aes->rounds = keylen/4 + 6;
+    /* Mark key installed so the shared aes.c mode guards accept this context. */
+    aes->keyInstalled = 1;
 
 #ifdef WOLFSSL_AES_COUNTER
     aes->left = 0;
@@ -556,6 +558,8 @@ int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len)
     aes->keylen = len;
     aes->rounds = len/4 + 6;
     aes->dir = AES_ENCRYPTION;
+    /* Mark key installed so the shared aes.c mode guards accept this context. */
+    aes->keyInstalled = 1;
 
     if (aes->rdFd > WC_SOCK_NOTSET) {
         (void)close(aes->rdFd);

wolfcrypt/src/port/caam/caam_aes.c

@@ -88,6 +88,8 @@ int  wc_AesSetKey(Aes* aes, const byte* key, word32 len,
         default:
             return BAD_FUNC_ARG;
     }
+    /* Mark key installed so the shared aes.c mode guards accept this context. */
+    aes->keyInstalled = 1;
 
     if ((ret = wc_AesSetIV(aes, iv)) != 0) {
         return ret;

wolfcrypt/src/port/devcrypto/devcrypto_aes.c

@@ -123,6 +123,8 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
 #endif
     aes->keylen = keylen;
     aes->rounds = keylen/4 + 6;
+    /* Mark key installed so the shared aes.c mode guards accept this context. */
+    aes->keyInstalled = 1;
 
 #if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
     defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)

wolfcrypt/src/port/kcapi/kcapi_aes.c

@@ -208,6 +208,9 @@ int wc_AesGcmSetKey(Aes* aes, const byte* key, word32 len)
     if (ret == 0) {
         aes->keylen = len;
         aes->rounds = len/4 + 6;
+        /* Mark key installed so the shared aes.c mode guards accept this
+         * context. */
+        aes->keyInstalled = 1;
 
         /* save key until type is known i.e. CBC, ECB, ... */
         XMEMCPY((byte*)(aes->devKey), key, len);

wolfcrypt/src/port/silabs/silabs_aes.c

@@ -87,6 +87,9 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
         aes->ctx.key.storage.location.buffer.pointer = (void*)aes->key;
         aes->ctx.key.storage.location.buffer.size = keylen;
         aes->ctx.key.size = keylen;
+        /* Mark key installed so the shared aes.c mode guards accept this
+         * context. */
+        aes->keyInstalled = 1;
     }
 
     return ret;

wolfcrypt/src/port/ti/ti-aes.c

@@ -103,6 +103,8 @@ int wc_AesSetKey(Aes* aes, const byte* key, word32 len, const byte* iv, int dir)
     }
     aes->keylen = len;
     aes->rounds = len / 4 + 6;
+    /* Mark key installed so the shared aes.c mode guards accept this context. */
+    aes->keyInstalled = 1;
 
     XMEMCPY(aes->key, key, len);
 #if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \