panfrost: Fix ZS reloading on Bifrost v6
MALI_PRE_POST_FRAME_SHADER_MODE_EARLY_ZS_ALWAYS was introduced in Bifrost v7. Use MALI_PRE_POST_FRAME_SHADER_MODE_ALWAYS on v6.
/cc @icecream95
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
MALI_PRE_POST_FRAME_SHADER_MODE_EARLY_ZS_ALWAYS was introduced in Bifrost v7. Use MALI_PRE_POST_FRAME_SHADER_MODE_ALWAYS on v6.
/cc @icecream95