[media] DocBook: better document FE_DISEQC_SEND_BURST ioctl

Use the proper format for FE_DISEQC_SEND_BURST documentation
and  improve the documentation.

Keep the enum fe_sec_mini_cmd description together with
the ioctl, as both are used together.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

include/uapi/linux/dvb/frontend.h

@@ -122,10 +122,12 @@ enum fe_sec_tone_mode {
 typedef enum fe_sec_tone_mode fe_sec_tone_mode_t;
 
 
-typedef enum fe_sec_mini_cmd {
+enum fe_sec_mini_cmd {
 	SEC_MINI_A,
 	SEC_MINI_B
-} fe_sec_mini_cmd_t;
+};
+
+typedef enum fe_sec_mini_cmd fe_sec_mini_cmd_t;
 
 
 /**