display: tool: add splash tool for generating logo file

Add logo_gen.py for generating splash log image, it converts
PNG file to image file proper for flashing splash partition.

Change-Id: I277c18d3352977c53b702d11698fec501ffede42
Merge "display: tool: add splash tool for generating logo file"
Bluetooth: Corrected ROME BTSOC condition.

This change corrects the syntax to check
ROME BT soc.

Change-Id: Iafd66c82d849b6920d988af7419efbc8f6e05e63
Merge "Bluetooth: Corrected ROME BTSOC condition."