Add mt8127 machine files

Change-Id: If0893c41891e863b88a889a54ce83784c6ef620d
Add mt8127 uart support

Change-Id: Ib142d861af12105fe3eeaa778d8fe234dc9773e0
Add mt8127 timer

Change-Id: Iadc8f9f5a06e02735843c130e87d405bcb53bbd2
Add mt8127 sdcard support

Change-Id: Ib11cc3464d2497143b25a7b7ad79fb0356c74146