arm64: fix build when !CONFIG_DMA_CMA

if !CONFIG_DMA_CMA throws error implicit declaration of function
‘dma_contiguous_early_fixup’ in routine
drivers/base/dma-removed.c:removed_dma_setup which has no
dependency over CONFIG_DMA_CMA.
Fix by removing dependency of CONFIG_DMA_CMA flag
for function dma_contiguous_early_fixup

CRs-Fixed: 1117213
Change-Id: Ife6d0399b7ae61d1781212a1ae7525378fb920fc
Signed-off-by: Atul Raut <araut@codeaurora.org>