Fix crash while loading config due to incorrect tw_storage_path

Change-Id: Ia5957efe616defa4272501cd8f31d26d394077bb
Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
twrp: Don't stop the build if DEVICE_RESOLUTION is not set.

* Blocks rom builds.

Change-Id: I40ec51dcd279328d015385bcdf9871ee6db89818