* drop maxcpus=0, which was added with 73a033328e ("device-nokia-n900: set
uniprocessor mode for kernel (MR 4299)") while troubleshooting. a better
fix was eventually implemented with 3e737241ba ("linux-postmarketos-omap:
N900: disable twl off idle features (MR 4317)")
* drop PMOS_NO_OUTPUT_REDIRECT, which was obsoleted by 7c98127746
("postmarketos-initramfs: switch to udev and kmod (MR 5000)")
The OMAP 3430 in the Nokia N900 is a uniprocessor SoC, so disable SMP via
kernel command line. This appears to alleviate the ongoing kernel crashes
affecting the Nokia N900 in pmOS.
[ci:skip-build]: already built successfully in CI
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
Resize the partition when using a pre-built image. We didn't notice that
this was missing, because N900 images are new and we only tested from
pmbootstrap install --sdcard, which already uses the full SD card size.
