linux-yocto/6.10: fix CONFIG_PWM_SYSFS config warning

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

1/1 [
    Author: Yogesh Tyagi
    Email: yogesh.tyagi@intel.com
    Subject: bsp : remove sysfs configs for pwm class
    Date: Fri, 23 Aug 2024 12:54:56 +0530

    Following commit removed the CONFIG_PWM_SYSFS from linux kernel:

    https://github.com/torvalds/linux/commit/e9cc807f87ffd1ccc919731e8f624982935af3e0



    Having these configs is causing below warning during linux-yocto-6.10 kernel build:

    WARNING: linux-yocto-6.10.3+git-r0 do_kernel_configcheck: [kernel config]: This BSP contains fragments with warnings:

    [INFO]: the following symbols were not found in the active configuration:
         - CONFIG_PWM_SYSFS

    This changes is needed in 6.10 as well as master branch

Signed-off-by: Yogesh Tyagi <yogesh.tyagi@intel.com>
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>