mei: vsc: Cast tx_buf to (__be32 *) when passed to cpu_to_be32_array()

mei: vsc: Cast tx_buf to (__be32 *) when passed to cpu_to_be32_array()

[ Upstream commit 97ce0fe2b7240d47d9124daa92217e478c21a3ba ]

Commit f88c0c72ffb0 ("mei: vsc: Use struct vsc_tp_packet as vsc-tp tx_buf
and rx_buf type") changed the type of tx_buf from "void *" to "struct
vsc_tp_packet *" and added a cast to (u32 *) when passing it to
cpu_to_be32_array() and the same change was made for rx_buf.

This triggers the type-check warning in sparse:

vsc-tp.c:327:28: sparse: expected restricted __be32 [usertype] *dst
vsc-tp.c:327:28: sparse: got unsigned int [usertype] *

vsc-tp.c:343:42: sparse: expected restricted __be32 const [usertype] *src
vsc-tp.c:343:42: sparse: got unsigned int [usertype] *

Fix this by casting to (__be32 *) instead.

Note actually changing the type of the buffers to "be32 *" is not an option
this buffer does actually contain a "struct vsc_tp_packet" and is used
as such most of the time. vsc_tp_rom_xfer() re-uses the buffers as just
dumb arrays of 32 bit words to talk to the device before the firmware has
booted, to avoid needing to allocate a separate buffer.

Fixes: f88c0c72ffb0 ("mei: vsc: Use struct vsc_tp_packet as vsc-tp tx_buf and rx_buf type")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505071634.kZ0I7Va6-lkp@intel.com/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250507090728.115910-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>