OMAP2420 IO mapping: move IVA mapping virtual address out of vmalloc space

Commit 10db25fea4c11661070b97832b8cc3d2af495092 causes the following
kernel messages during N800 boot (and presumably all other 2420
boards):

[    0.000000] BUG: mapping for 0x58000000 at 0xe0000000 overlaps vmalloc space
[    0.000000] BUG: mapping for 0x59000000 at 0xe1000000 overlaps vmalloc space
[    0.000000] BUG: mapping for 0x5a000000 at 0xe2000000 overlaps vmalloc space

Fix by remapping the IVA memory areas somewhere outside vmalloc space.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Tony Lindgren <tony@atomide.com>

arch/arm/plat-omap/include/plat/io.h

@@ -123,14 +123,17 @@
 #define OMAP243X_SMS_SIZE	SZ_1M
 
 /* 2420 IVA */
-#define DSP_MEM_2420_PHYS	OMAP2420_DSP_MEM_BASE	/* 0x58000000 */
-#define DSP_MEM_2420_VIRT	0xe0000000
+#define DSP_MEM_2420_PHYS	OMAP2420_DSP_MEM_BASE
+						/* 0x58000000 --> 0xfc100000 */
+#define DSP_MEM_2420_VIRT	0xfc100000
 #define DSP_MEM_2420_SIZE	0x28000
-#define DSP_IPI_2420_PHYS	OMAP2420_DSP_IPI_BASE	/* 0x59000000 */
-#define DSP_IPI_2420_VIRT	0xe1000000
+#define DSP_IPI_2420_PHYS	OMAP2420_DSP_IPI_BASE
+						/* 0x59000000 --> 0xfc128000 */
+#define DSP_IPI_2420_VIRT	0xfc128000
 #define DSP_IPI_2420_SIZE	SZ_4K
-#define DSP_MMU_2420_PHYS	OMAP2420_DSP_MMU_BASE	/* 0x5a000000 */
-#define DSP_MMU_2420_VIRT	0xe2000000
+#define DSP_MMU_2420_PHYS	OMAP2420_DSP_MMU_BASE
+						/* 0x5a000000 --> 0xfc129000 */
+#define DSP_MMU_2420_VIRT	0xfc129000
 #define DSP_MMU_2420_SIZE	SZ_4K
 
 /* 2430 IVA2.1 - currently unmapped */