build: Add local build script for VisionFive2

build: Add local build script for VisionFive2

Add local build script for VisionFive2.

This change is squash of below commits:
   commit 7c34e2ea4586 ("build: Change module image size from 32M to 20M")
   commit 9956753185f6 ("Build packages for different platforms")
   commit e876165aca8f ("build: add the separated device tree file")
   commit 34a3215f6226 ("build: Add local build script for VisionFive2")

Change-Id: I0ca80fd1e383b9ce62797944fba1755e315fa9c7
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>