interconnect: imx: Add imx_icc_get_bw function to set initial avg and peak

Set the initial avg and peak to 0 in order to avoid setting them to
INT_MAX by the interconnect core.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/20220106170501.3513423-1-abel.vesa@nxp.com


Signed-off-by: Georgi Djakov <djakov@kernel.org>