omap3: drop all IVA-related address base definitions

All of the OMAP3 IVA physical address macros in
plat-omap/include/plat/omap34xx.h are wrong[1]:

OMAP34XX_IVA_INTC_BASE: The IVA interrupt controller does not appear
to be accessible from the L3 interconnect, and in any case is
definitely not at 0x40000000; the latter address appears to be the
internal IVA physical address base for the OMAP2420's interrupt control[2].

OMAP34XX_DSP_BASE: The section of L3 physical address space mapped to
the IVA starts at 0x5c000000, not 0x58000000.

OMAP34XX_DSP_MEM_BASE: It's not clear what this refers to, but it's not
in the L3 IVA address space.

OMAP34XX_DSP_IPI_BASE: The Intrusive Port Interface is a relic from
the OMAP2420 days and no longer applies to OMAP3.

OMAP34XX_DSP_MMU_BASE: The DSP MMU is mapped at 0x5d000000, not 0x5a000000.


Nothing that uses these can possibly be working, so drop them.  When
future code needs these, correct versions can be added in.

1. OMAP34xx Multimedia Device Silicon Revision 3.1.x Rev. W, Table 2-8:
   "L3 Interconnect View of the IVA2.2 Subsystem Memory Space."  p. 229.

2. OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 (Rev. Q),
   section 2.2.4.1, "IVA Memory Space Seen by L3", p. 132.

3. ibid., section 4.3.11, "DSP IPI Overview", p. 200.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

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