sockit-multicore: AND ipi and tc resets instead of ORing

It might be wanted to keep a small set of the cpu-cores in reset,
but still have the ipi and tc cores working
sockit-multicore: increase cpu count to 4

there's some i2s related changes in the wb_intercon files
too, I'm too lazy to split them out...
sockit-multicore: i2s/wb_streamer fixes

generate sclk from pll, and add proper syncronization
of the lrclk CDC (sclk->wb_clk).
sockit-multicore: add wb_intercon_gen.sh helper script