hw/intc/arm_gicv3_its: Add missing blank line

In commit b6f96009ac we split do_process_its_cmd() from
process_its_cmd(), but forgot the usual blank line between function
definitions.  Add it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220408141550.1271295-2-peter.maydell@linaro.org

hw/intc/arm_gicv3_its.c

@@ -380,6 +380,7 @@ static ItsCmdResult do_process_its_cmd(GICv3ITSState *s, uint32_t devid,
     }
     return CMD_CONTINUE;
 }
+
 static ItsCmdResult process_its_cmd(GICv3ITSState *s, const uint64_t *cmdpkt,
                                     ItsCmdType cmd)
 {