Fix a grammar error
Signed-off-by: Chien Wong <m@xv97.com>
diff --git a/tf-psa-crypto/drivers/builtin/include/mbedtls/gcm.h b/tf-psa-crypto/drivers/builtin/include/mbedtls/gcm.h
index 764b7c9..a358d89 100644
--- a/tf-psa-crypto/drivers/builtin/include/mbedtls/gcm.h
+++ b/tf-psa-crypto/drivers/builtin/include/mbedtls/gcm.h
@@ -278,8 +278,8 @@
* of at least \p output_size bytes.
* \param output_size The size of the output buffer in bytes.
* \param output_length On success, \p *output_length contains the actual
- * length of the output written in \p output, which equals
- * to \p input_length.
+ * length of the output written in \p output, which is
+ * equal to \p input_length.
* On failure, the content of \p *output_length is
* unspecified.
*