linux-phytec-ti

arm: mach-omap2: omap_hwmod: Introduce omap_hwmod_rst save/restore

With the introduction of ti,sysc driver we no longer need to
save/restore the actual module context but the rst lines context
needs to be saved/restored. Hence add the omap_hwmod_rst save/restore
functions.

Signed-off-by: Keerthy <j-keerthy@ti.com>