zephyr-kernel-src-3.1.0.inc: bump lvgl module for arial font removal

The LVGL repo had a proprietary font, arial, included. It has been
removed upstream now and this commits updates the SRCREV to use the new
upstream version with the font removed.

https://github.com/zephyrproject-rtos/zephyr/issues/48111
https://github.com/lvgl/lvgl/commit/7354b2ea
https://github.com/lvgl/lvgl/commit/c6f76ec7
https://github.com/zephyrproject-rtos/zephyr/pull/49103/commits/758e6d6e340c6eab3607ec1b2963e616640b6f92



Signed-off-by: Stefan Schmidt <stefan.schmidt@huawei.com>