target/mips: Clean up lmi_helper.c

Remove several minor checkpatch warnings and errors.
Signed-off-by: NAleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <1556018982-3715-7-git-send-email-aleksandar.markovic@rt-rk.com>

target/mips/lmi_helper.c

@@ -21,9 +21,11 @@
 #include "cpu.h"
 #include "exec/helper-proto.h"
 
-/* If the byte ordering doesn't matter, i.e. all columns are treated
-   identically, then this union can be used directly.  If byte ordering
-   does matter, we generally ignore dumping to memory.  */
+/*
+ * If the byte ordering doesn't matter, i.e. all columns are treated
+ * identically, then this union can be used directly.  If byte ordering
+ * does matter, we generally ignore dumping to memory.
+ */
 typedef union {
     uint8_t  ub[8];
     int8_t   sb[8];