Add missing asterisk to doxygen closures

Clarify section names next to closing braces
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h
index 0924341..9effa44 100644
--- a/include/mbedtls/ecp.h
+++ b/include/mbedtls/ecp.h
@@ -351,7 +351,7 @@
 #define MBEDTLS_ECP_FIXED_POINT_OPTIM  1   /**< Enable fixed-point speed-up. */
 #endif /* MBEDTLS_ECP_FIXED_POINT_OPTIM */
 
-/* \} name SECTION: Module settings */
+/** \} name SECTION: Module settings */
 
 #else  /* MBEDTLS_ECP_ALT */
 #include "ecp_alt.h"