isdb-t: Update Brazil channel lists

Use the current lists from portalbsd.com.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

isdb-t/br-ma-Davinopolis

@@ -2,7 +2,7 @@
 # Source: https://portalbsd.com.br/terrestres_channels.php?cidade=3343
 
 # Physical channel 18 (virtual 4.1)
-[TV Imperatriz]
+[TV Liberdade]
 	DELIVERY_SYSTEM = ISDBT
 	BANDWIDTH_HZ = 6000000
 	FREQUENCY = 497142857
@@ -31,7 +31,7 @@
 	ISDBT_LAYERC_TIME_INTERLEAVING = 0
 
 # Physical channel 19 (virtual 19.1)
-[ImperaNews TV]
+[TV Meio Norte Imperatriz]
 	DELIVERY_SYSTEM = ISDBT
 	BANDWIDTH_HZ = 6000000
 	FREQUENCY = 503142857
@@ -291,8 +291,8 @@
 	ISDBT_LAYERC_SEGMENT_COUNT = 0
 	ISDBT_LAYERC_TIME_INTERLEAVING = 0
 
-# Physical channel 38 (virtual 7.1)
-[TV Difusora Sul]
+# Physical channel 38 (virtual 7.2)
+[TV Difusora Sul, TV Educa Imperatriz]
 	DELIVERY_SYSTEM = ISDBT
 	BANDWIDTH_HZ = 6000000
 	FREQUENCY = 617142857
@@ -350,7 +350,7 @@
 	ISDBT_LAYERC_TIME_INTERLEAVING = 0
 
 # Physical channel 46 (virtual 46.1)
-[TV Tapajós]
+[TV Girassol]
 	DELIVERY_SYSTEM = ISDBT
 	BANDWIDTH_HZ = 6000000
 	FREQUENCY = 665142857