ANDROID: dma_heap: add dma_parms for uncached heap

In system_heap_do_allocate, we will use uncached heap device to call
dma_map_sgtable & dma_unmap_sgtable to do implicitly flush.

However, device of uncached heap is not set dma_parms, default value(64KB)
is too small for dma_heap buffer, it will cause some warning log below when
CONFIG_DMA_API_DEBUG_SG is enabled.

warning log sample:
 |DMA-API: dma_heap system-uncached: mapping sg segment longer than device claims to support [len=1048576] [max=65536]
 |WARNING: CPU: 4 PID: 576 at kernel/dma/debug.c:1173 debug_dma_map_sg+0x214/0x438
 |......

Bug: 199986022
Change-Id: I97076de329f4a50d035d43d69cb17606064c3151
Signed-off-by: Guangming Cao <Guangming.Cao@mediatek.com>