[MAX8998] Experimental power off patch.

Some audio GPIO changes sneaked into mach-wave.
Remove misleading GPIO defs.
[AUDIO/TZPC] Set I2S0 as non-secure area, enabling DMA transfers on it.
fixup! [AUDIO/TZPC] Set I2S0 as non-secure area, enabling DMA transfers on it.
fixup! [AUDIO/TZPC] Set I2S0 as non-secure area, enabling DMA transfers on it.
[TZPC] Make all regions non-secure.