mt8183: config: rename persist -> misc partition

Misc is the standard Android name [1] for the small partition hosting the
Bootloader Control Block (BCB).

Follow that convention by renaming persist -> misc.

[1] https://source.android.com/devices/bootloader/partitions-images

Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
diff --git a/include/configs/mt8183.h b/include/configs/mt8183.h
index b3f8c13..cfdd78d 100644
--- a/include/configs/mt8183.h
+++ b/include/configs/mt8183.h
@@ -58,7 +58,7 @@
 		"part size mmc ${mmcdev} recovery recovery_part_size;" \
 		"mmc read ${loadaddr} ${recovery_part_start} ${recovery_part_size}; \0" \
 	"mmcboot=" \
-		"if bcb load ${mmcdev} persist; then " \
+		"if bcb load ${mmcdev} misc; then " \
 			"if bcb test command = boot-recovery; then " \
 				"bcb clear command; bcb store;" \
 				"aprop load ${mmcdev} userdata;" \