nokia-n900: use updated serial console name (MR 3662)

Since 00648d0282dcca1da453c0b20d27e24bf901a854, the correct serial console name
is ttySx instead of the older ttyOx. Reflect this in cmdline passed to kernel
via u-boot

[ci:skip-build]: already built successfully in CI

device/community/device-nokia-n900/APKBUILD

@@ -3,7 +3,7 @@
 # Co-Maintainer: Danct12 <danct12@disroot.org>
 pkgname=device-nokia-n900
 pkgver=8.3
-pkgrel=2
+pkgrel=3
 pkgdesc="Nokia N900"
 url="https://postmarketos.org"
 arch="armv7"
@@ -189,7 +189,7 @@ dc585e11bf4e06e36c5c62bcc024eaacecc30437d9da5257df14be05e247a2f2bc208874be3058ed
 e440ed7a3070c17e003b86b72dbe6d8194d01b577ca8dd56dd066f216b6dda32bb965c780950f1789a66f7c948290016b048da9f1cf63aba9e11d7e7fd6873ba  rx51_us.map
 b50e7f37ffb1fa0bb782b117a4e8bcfdb722b6127c3e5d643e90cd901a1f4e65e77a0773ed418673c8195595347482be0c8096f5a723e840315ad61ccd043b66  n900-wlan-data.initd
 143c21f0b18a016d37cb44178e9daea09f128a90769b48353c03c3f245cb9b1f7e773b9ccee084973fc78ddd7a18c2642e54888a85bda7c7daecddc9a8c62eff  pointercal
-3ae550b50f963695be30eb0e03c31fe7a92aad73174873efe5b73d446b74da5763b6fe9495b91bbdbe307723f6510ebc6639437904815e9251a094ce9bec5b11  uboot-script.cmd
+9aaae66ae159236346f67818c44da61aed84a63b3bac0c706492f198db82fc67c2378bcabaf260b695b980bf2faf144472f15355bb097b021551db9547f2e1bc  uboot-script.cmd
 9e72035c88632d12895534e5aa5746f2c130c7dcdafa8702748d62b71ed0e1b5911b6e1f07f9b9e39b6072bbb662f66aead585baa1dcacb7d8c8953ca89b6762  10-nokia-modem.rules
 c6012aef28b096141b924fced226ec99fb93eb53b69c064a8887d8fecdf8dc08a3ba3db399e18d88374c6ef4c59013a30699c7e4d76e5cb771040582573a0527  90-touchscreen-dev.rules
 737d9e57e219a0220c5b1943375f325309323344fdf06973546c7d88ed9aec857657abd6b7861669873574f865e1c99719d411e0564dbfebe028f9e77d308491  x11-keymap

device/community/device-nokia-n900/uboot-script.cmd

@@ -2,7 +2,7 @@ setenv mmcnum 0
 setenv mmcpart 1
 setenv mmctype ext2
 setenv setup_omap_atag 1
-setenv bootargs init=/init.sh rw console=tty0 console=ttyO2 PMOS_NO_OUTPUT_REDIRECT PMOS_FORCE_PARTITION_RESIZE
+setenv bootargs init=/init.sh rw console=tty0 console=ttyS2 PMOS_NO_OUTPUT_REDIRECT PMOS_FORCE_PARTITION_RESIZE
 setenv mmckernfile /uImage
 setenv mmcinitrdfile /uInitrd
 setenv mmcscriptfile