linux-postmarketos-omap: Update to 6.9.3

Enabled CONFIG_NLS_ASCII - #2874 (closed)

Revert logic for iio-rescale.c - https://lore.kernel.org/all/20220524075448.140238-1-linus.walleij@linaro.org/ Enables light and proximity sensor!

Fix whiteline issues

Remove patch for power controller as it is mainlined - #2825 (closed)

Update to 6.9.3

TODO:

• Check clk32kg - https://lore.kernel.org/lkml/20230916100515.1650336-6-andreas@kemnade.info/ (Fixes #2672 (closed))
• Check it works fine on other omap devices @akemnade @sicelo @antoni.aloytorrens

It would be great if we get this merged into v24.06

device/community/linux-postmarketos-omap/0001-Add-TWL6032-dtsi.patch

@@ -3,7 +3,7 @@ new file mode 100644
 index 000000000..f7b371179
 --- /dev/null
 +++ b/arch/arm/boot/dts/ti/omap/twl6032.dtsi
-@@ -0,0 +1,88 @@
+@@ -0,0 +1,93 @@
 +/*
 + * Integrated Power Management Chip
 + * http://www.ti.com/lit/ds/symlink/twl6032.pdf
@@ -79,7 +79,7 @@ index 000000000..f7b371179
 +               regulator-always-on;
 +       };
 +
-+       vusb: regulator-vusb {
++       ldousb: regulator-ldousb {
 +               compatible = "ti,twl6032-ldousb";
 +               regulator-min-microvolt = <3300000>;
 +               regulator-max-microvolt = <3300000>;
@@ -91,4 +91,9 @@ index 000000000..f7b371179
 +               interrupts = <3>;
 +               #io-channel-cells = <1>;
 +       };
++
++       twl_usb_comparator: usb-comparator {
++               compatible = "ti,twl6030-usb";
++               interrupts = <4>, <10>;
++       };
 +};