staging: octeon: add blank line after union

add a blank line after union declaration to fix checkpatch.pl warning
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Link: https://lore.kernel.org/r/20200220195654.GA14056@kaaira-HP-Pavilion-NotebookSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/octeon/octeon-stubs.h

@@ -382,6 +382,7 @@ union cvmx_ipd_sub_port_qos_cnt {
 		uint64_t reserved_41_63:23;
 	} s;
 };
+
 typedef struct {
 	uint32_t dropped_octets;
 	uint32_t dropped_packets;