MLK-18793 imx8mq: config: add jailhouse env

MLK-18793 imx8mq: config: add jailhouse env

Add jailhouse env. Currently need to pass clk_ignore_unused to bootargs
to avoid linux root cell shutdown clocks used by inmates.

If only want a minimal clk being on in inmates, the clks could
be added in clk_inits_on in linux kernel drivers/clk/imx/clk-imx8mq.c

Signed-off-by: Peng Fan <peng.fan@nxp.com>
(cherry picked from commit 0d33db00e96e7addb6910a7097a62222ff75480f)
(cherry picked from commit 56ea0d9280b22ce3e260851e88782cb877fad6ec)