Improved sanity checks for the hwcomposer

- Adds the LOG_TAG macro
- Checks for empty composition requests (no layers)
- Adds exception for compostion request with only FB target with null
  handle
- Switches to LOG_ALWAYS_FATAL for fatal crashes

(Taken from Change-Id: Icb35eab7b0862485bf4b3d9fa02f71aec1220a0c)

Bug: 72998203
Test: local
Change-Id: Ia66ee481decbae204304852c8fb45260cb79f6a1