Update LVGL to v9.1.0

[faxe1008]

Updates the module to upstream v9.0. The only remaining deltas: git diff v9.0.0 HEAD

diff --git a/Kconfig b/Kconfig
index 91a7da4b6..9d8529a54 100644
--- a/Kconfig
+++ b/Kconfig
@@ -1,5 +1,6 @@
 # Kconfig file for LVGL v9.0.0

+if LVGL
 menu "LVGL configuration"

        # Define CONFIG_LV_CONF_SKIP so we can use LVGL
@@ -1581,3 +1582,4 @@ menu "LVGL configuration"
        endmenu

 endmenu
+endif
diff --git a/zephyr/module.yml b/zephyr/module.yml
new file mode 100644
index 000000000..38ef2dd29
--- /dev/null
+++ b/zephyr/module.yml
@@ -0,0 +1,5 @@
+# https://docs.zephyrproject.org/latest/guides/modules.html
+name: lvgl
+build:
+  cmake-ext: True
+  kconfig: Kconfig