theme: Capitalize EDL

TWRP used 'Edl', but everywhere else, it is 'EDL'.

Change-Id: I4f63185ffb96797da0d695b34857ee242cfa33e8
diff --git a/gui/theme/extra-languages/languages/zh_TW.xml b/gui/theme/extra-languages/languages/zh_TW.xml
index 0f9e826..1d9c693 100644
--- a/gui/theme/extra-languages/languages/zh_TW.xml
+++ b/gui/theme/extra-languages/languages/zh_TW.xml
@@ -292,7 +292,7 @@
 		<string name="rb_recovery_btn">Recovery</string>
 		<string name="rb_bootloader_btn">Bootloader</string>
 		<string name="rb_download_btn">Download</string>
-		<string name="rb_edl_btn">Edl</string>
+		<string name="rb_edl_btn">EDL</string>
 		<string name="turning_off">正在關機…</string>
 		<string name="swipe_power_off">滑動滑塊確認關機</string>
 		<string name="swipe_power_off_s">關機</string>