On SM8250 (IRIS2) with firmware older than 1.0.087, the firmware
could not handle a dummy device address for EOS buffers, so a NULL
device address is sent instead. The existing check used IS_V6()
with a firmware version gate:

    if (IS_V6(core) && is_fw_rev_or_older(core, 1, 0, 87))
        fdata.device_addr = 0;
    else
        fdata.device_addr = 0xdeadb000;

However, SC7280, which is also V6, uses a firmware string of the
form "1.0.<commit-hash>". The version parser translates this to
1.0.0. This satisfies the is_fw_rev_or_older(..., 1, 0, 87)
condition on SC7280. Combined with IS_V6() matching, the quirk is
incorrectly applied there and causes VP9 decode failures.

Constrain the check to IRIS2 (SM8250) only, which is the only
platform that needs this quirk, by replacing IS_V6() with
IS_IRIS2(). This restores correct behavior on SC7280 and avoids a
forced NULL EOS buffer address.

Fixes: 47f867c ("media: venus: fix EOS handling in decoder stop")
Cc: stable@vger.kernel.org
Reported-by: Mecid <mecid@mecomediagroup.de>
Closes: qualcomm-linux#222
Co-developed-by: Renjiang Han <renjiang.han@oss.qualcomm.com>

Signed-off-by: Renjiang Han <renjiang.han@oss.qualcomm.com>
Signed-off-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>