Enable struct initializer alignment

Uncrustify 0.68 fixed the addition of extra spaces after the last
argument.

uncrustify.cfg

@@ -1584,7 +1584,7 @@ align_var_struct_thresh         = 0        # unsigned number
 align_var_struct_gap            = 1        # unsigned number
 
 # The span for aligning struct initializer values (0=don't align)
-align_struct_init_span            = 0        # unsigned number
+align_struct_init_span          = 1        # unsigned number
 
 # The minimum space between the type and the synonym of a typedef.
 align_typedef_gap               = 1        # unsigned number