ARM: shmobile: rcar-gen2: update call to dma_contiguous_reserve_area

Commit 5ea3b1b2 'cma: add placement specifier for "cma=" kernel parameter'
adds a new 'fixed' parameter to dma_contiguous_reserve_area(). Update
rcar_gen2_reserve() accordingly.

This fixes the following compilation error:

  arch/arm/mach-shmobile/setup-rcar-gen2.c: In function ‘rcar_gen2_reserve’:
  arch/arm/mach-shmobile/setup-rcar-gen2.c:182:10: error: too few arguments to function ‘dma_contiguous_reserve_area’
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/setup-rcar-gen2.c

@@ -179,6 +179,6 @@ void __init rcar_gen2_reserve(void)
 #ifdef CONFIG_DMA_CMA
 	if (mrc.size)
 		dma_contiguous_reserve_area(mrc.size, mrc.base, 0,
-					    &rcar_gen2_dma_contiguous);
+					    &rcar_gen2_dma_contiguous, true);
 #endif
 }