ARM: OMAP: Remove cpu_is_omap usage from plat-omap/dma.c

This code will be eventually in drivers, and for the
code in the drivers we don't want to have any cpu_is_omap
usage. Those macros should be private to arch/arm/mach-omap1
and arch/arm/mach-omap2.

To fix this, let's move the define for dma_omap2plus()
to dma-omap.h, and use the existing dma_attr passed in
the platform_data as the revision registers are what they
are.

Note that we can now also remove the relative includes
introduced by the recent clean-up patches.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/dma.c

@@ -276,6 +276,9 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
 		return -ENOMEM;
 	}
 
+	if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
+		d->dev_caps |= HS_CHANNELS_RESERVED;
+
 	/* Check the capabilities register for descriptor loading feature */
 	if (dma_read(CAPS_0, 0) & DMA_HAS_DESCRIPTOR_CAPS)
 		dma_common_ch_end = CCDN;