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Add HDMI audio support. Adds mcasp0_pins, clk_mcasp0_fixed,
clk_mcasp0, mcasp0, sound node, and updates the tda19988 node to
follow the new binding.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>