linux-yocto/6.6: genericarm64.cfg: enable CONFIG_DMA_CMA

linux-yocto/6.6: genericarm64.cfg: enable CONFIG_DMA_CMA

Integrating the following commit(s) to linux-yocto/.:

1/1 [
    Author: Mikko Rapeli
    Email: mikko.rapeli@linaro.org
    Subject: genericarm64.cfg: enable CONFIG_DMA_CMA
    Date: Thu, 24 Oct 2024 08:49:29 +0300

    It's needed for graphics on AMD KV260.

    Cc: Bill Mills <bill.mills@linaro.org>
    Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org>
    Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
]

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 87bbf8eaa48cfc8bca02d86bd089df61846d2ca4)
Signed-off-by: Steve Sakoman <steve@sakoman.com>