In some cases we will need the dma's buffer to be aligned with specific
requirements. This MR add two helper function to split the unaligned
buffer and merge to the origin buffer. The cost is that each unaligned
buffer requires two stash buffers of spilt alignment size. And this
memory should be managed by callers.
Add burst_length option to client
Change uint32_t to color_pixel_rgb888_data_t
Descriptor always malloc with MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT
Add dscr-port mode block size configuration as a separate API in 2D-DMA driver
Do writeback only on an extended window, instead of entire picture
Modified API operation configuration structure
Rename invoker to client
Support YUV420 color mode for SRM
Move PPA srm/blending engine reset ahead of any 2D-DMA channel configurations
