Revert "PL2: Replace bootloader button with download button"

This reverts commit 79c006f86c8712f5bb60b2ad4dba0f772596214d.

BoardConfig.mk

@@ -89,8 +89,6 @@ TW_SCREEN_BLANK_ON_BOOT := true
 TW_THEME := portrait_hdpi
 TW_USE_TOOLBOX := true
 TW_INCLUDE_REPACKTOOLS := true
-TW_NO_REBOOT_BOOTLOADER := true
-TW_HAS_DOWNLOAD_MODE := true
 TW_HAS_EDL_MODE := true
 
 # Workaround for error copying vendor files to recovery ramdisk