Upgrade simpPRU to support the 5.10.x-ti kernel + gcc-pru 12 + TI PRU 6.0

[VedantParanjape]

@VedantParanjape , if you rely on RPMSG, you also need to update the PRU firmware. For kernel 5.10 please check the recent commits in:

• https://github.com/dinuxbg/pru-software-support-package , master branch, lab05 for am335x
• https://github.com/dinuxbg/pru-gcc-examples , master branch, example hc-sr04-range-sensor

Originally posted by @dinuxbg in https://github.com/VedantParanjape/simpPRU/issues/25#issuecomment-1002421013

[VedantParanjape]

@VedantParanjape , to get the changes made for kernel 5.10:

$ git clone https://github.com/dinuxbg/pru-gcc-examples
$ git log origin/linux-4.19-rproc..origin/master

The only required change is this: https://github.com/dinuxbg/pru-gcc-examples/commit/e855710536740b5ef50bdfdcb5d5d4c52cff4367 .

Originally posted by @dinuxbg in https://github.com/VedantParanjape/simpPRU/issues/25#issuecomment-1002685791