PEM: Have pem_read_bio_key() set the OSSL_STORE expected type

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13248)

crypto/pem/pem_pkey.c

diff --git a/crypto/pem/pem_pkey.c b/crypto/pem/pem_pkey.c
index 5ecae86..e6c07b8 100644
--- a/crypto/pem/pem_pkey.c
+++ b/crypto/pem/pem_pkey.c
@@ -67,6 +67,9 @@
 # endif
 #endif
 
+    if (!OSSL_STORE_expect(ctx, expected_store_info_type))
+        goto err;
+
     while (!OSSL_STORE_eof(ctx)
            && (info = OSSL_STORE_load(ctx)) != NULL) {
         if (OSSL_STORE_INFO_get_type(info) == expected_store_info_type) {