[23.05] irqbalance: Fix log spam and correct meson version

[hnyman]

Irqbalance 1.9.3 changed the handling of certain errors. Specifically EINVAL, trying to set an invalid CPU core, was changed to be a temporary error, causing log spam from repeated balancing runs in some devices. See log and strace below. Mark EINVAL as permanent.

This errors seems to surface on 23.05 only on some devices, but not all.
And when I briefly tested, the unpatched 1.9.3 seemed to work in R7800 main/master build (with kernel 6.1) but fail with 23.05. So I initially author this fix just for 23.05

Also correct the version in our own meson.build patch.

Log and strace:

Sat Dec  9 10:17:27 2023 daemon.warn irqbalance: Cannot change IRQ 48 affinity: Invalid argument

open("/proc/irq/48/smp_affinity", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 6 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6ed9000
ioctl(6, TIOCGWINSZ, 0xbeb134e8)        = -1 ENOTTY (Not a tty)
writev(6, [{iov_base="00000001", iov_len=8}, {iov_base=NULL, iov_len=0}], 2) = -1 EINVAL (Invalid argument)
close(6)                                = 0
munmap(0xb6ed9000, 4096)                = 0
clock_gettime64(CLOCK_REALTIME, {tv_sec=1702109847, tv_nsec=340549081}) = 0
sendto(5, "<28>Dec  9 08:17:27 irqbalance: "..., 80, 0, NULL, 0) = 80
writev(1, [{iov_base="Cannot change IRQ 48 affinity: I"..., iov_len=47}, {iov_base="\n", iov_len=1}], 2Cannot change IRQ 48 affinity: Invalid argument
) = 48

Maintainer: me
Run tested: ipq806x/R7800

I wrote a comment upstream. Interesting to see their views.
Irqbalance/irqbalance#269 (comment)