securemsm-kernel: Add IClientEnv_registerWithCredentials

Use new ClientEnv register method for kernel clients

Change-Id: I3ce32788c5c7658dcaf808c00d52c32df226fec6

smcinvoke/smcinvoke.c

@@ -33,6 +33,7 @@
 #include "misc/qseecom_kernel.h"
 #include "smcinvoke.h"
 #include "smcinvoke_object.h"
+#include "IClientEnv.h"
 
 #define CREATE_TRACE_POINTS
 #include "trace_smcinvoke.h"
@@ -2256,6 +2257,14 @@ static long process_invoke_req(struct file *filp, unsigned int cmd,
 		return -EINVAL;
 	}
 
+	if (context_type == SMCINVOKE_OBJ_TYPE_TZ_OBJ &&
+			tzobj->tzhandle == SMCINVOKE_TZ_ROOT_OBJ &&
+			(req.op == IClientEnv_OP_notifyDomainChange ||
+			req.op == IClientEnv_OP_registerWithCredentials)) {
+		pr_err("invalid rootenv op\n");
+		return -EINVAL;
+	}
+
 	nr_args = OBJECT_COUNTS_NUM_buffers(req.counts) +
 			OBJECT_COUNTS_NUM_objects(req.counts);