Renesas: Fix renesas documentation
Difference was done between old and new documentation
Keeping useful information from the old version
Adding new changes from the new one
Bug-AGL: SPEC-3666
Signed-off-by: Frederic Marec <frederic.marec@iot.bzh>
Change-Id: I8885ab8cb2f96ad76f83b1a4d83529a9a481607f
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/documentation/+/25472
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>