docs: linux/kernel-build: Update UART settings for nSIM

With implementation of a standard 16550 UART in nSIM we moved over to it
from legacy ARC UART. Among other things that made it possible to use
the same one binary on multiple platforms: nSIM, QEMU & even HAPS.

Now update nSIM options accordingly.

doc/linux/kernel-build.rst

@@ -154,7 +154,7 @@ nSIM. This kernel image can be run directly on nSIM, without any other
 additional software. Assuming current directory is
 ``arc-2020.09-linux-guide``::
 
-    $ $NSIM_HOME/bin/nsimdrv -prop=nsim_isa_family=av2hs -prop=nsim_isa_core=3 -prop=chipid=0xffff -prop=nsim_isa_atomic_option=1 -prop=nsim_isa_ll64_option=1 -prop=nsim_mmu=4 -prop=mmu_pagesize=8192 -prop=mmu_super_pagesize=2097152 -prop=mmu_stlb_entries=16 -prop=mmu_ntlb_ways=4 -prop=mmu_ntlb_sets=128 -prop=icache=32768,64,4,0 -prop=dcache=16384,64,2,0 -prop=nsim_isa_shift_option=2 -prop=nsim_isa_swap_option=1 -prop=nsim_isa_bitscan_option=1 -prop=nsim_isa_sat=1 -prop=nsim_isa_div_rem_option=1 -prop=nsim_isa_mpy_option=9 -prop=nsim_isa_enable_timer_0=1 -prop=nsim_isa_enable_timer_1=1 -prop=nsim_isa_number_of_interrupts=32 -prop=nsim_isa_number_of_external_interrupts=32 -prop=isa_counters=1 -prop=nsim_isa_pct_counters=8 -prop=nsim_isa_pct_size=48 -prop=nsim_isa_pct_interrupt=1 -prop=nsim_mem-dev=uart0,base=0xc0fc1000,irq=24 -prop=nsim_isa_aps_feature=1 -prop=nsim_isa_num_actionpoints=4 -prop=nsim_isa_rtc_option=1 output_hs/images/vmlinux
+    $ $NSIM_HOME/bin/nsimdrv -prop=nsim_isa_family=av2hs -prop=nsim_isa_core=3 -prop=chipid=0xffff -prop=nsim_isa_atomic_option=1 -prop=nsim_isa_ll64_option=1 -prop=nsim_mmu=4 -prop=mmu_pagesize=8192 -prop=mmu_super_pagesize=2097152 -prop=mmu_stlb_entries=16 -prop=mmu_ntlb_ways=4 -prop=mmu_ntlb_sets=128 -prop=icache=32768,64,4,0 -prop=dcache=16384,64,2,0 -prop=nsim_isa_shift_option=2 -prop=nsim_isa_swap_option=1 -prop=nsim_isa_bitscan_option=1 -prop=nsim_isa_sat=1 -prop=nsim_isa_div_rem_option=1 -prop=nsim_isa_mpy_option=9 -prop=nsim_isa_enable_timer_0=1 -prop=nsim_isa_enable_timer_1=1 -prop=nsim_isa_number_of_interrupts=32 -prop=nsim_isa_number_of_external_interrupts=32 -prop=isa_counters=1 -prop=nsim_isa_pct_counters=8 -prop=nsim_isa_pct_size=48 -prop=nsim_isa_pct_interrupt=1 -prop=nsim_mem-dev=uart0,kind=dwuart,base=0xf0000000,irq=24 -prop=nsim_isa_aps_feature=1 -prop=nsim_isa_num_actionpoints=4 -prop=nsim_isa_rtc_option=1 output_hs/images/vmlinux
 
 Username is ``root`` without a password. To halt target system issue ``halt``
 command.
@@ -220,7 +220,7 @@ required only to change several option in Buildroot defconfig:
 Then repeat steps from :ref`linux-building-label` section of this document to build
 Linux kernel image. To run this image in nSIM use next command::
 
-$ $NSIM_HOME/bin/nsimdrv -prop=nsim_isa_family=a700 -prop=nsim_isa_atomic_option=1 -prop=nsim_mmu=3 -prop=icache=32768,64,2,0 -prop=dcache=32768,64,4,0 -prop=nsim_isa_dpfp=none -prop=nsim_isa_shift_option=2 -prop=nsim_isa_swap_option=1 -prop=nsim_isa_bitscan_option=1 -prop=nsim_isa_sat=1 -prop=nsim_isa_mpy32=1 -prop=nsim_isa_enable_timer_0=1 -prop=nsim_isa_enable_timer_1=1 -prop=nsim_mem-dev=uart0 -prop=isa_counters=1 -prop=nsim_isa_pct_counters=8 -prop=nsim_isa_pct_size=48 output_hs/images/vmlinux
+$ $NSIM_HOME/bin/nsimdrv -prop=nsim_isa_family=a700 -prop=nsim_isa_atomic_option=1 -prop=nsim_mmu=3 -prop=icache=32768,64,2,0 -prop=dcache=32768,64,4,0 -prop=nsim_isa_dpfp=none -prop=nsim_isa_shift_option=2 -prop=nsim_isa_swap_option=1 -prop=nsim_isa_bitscan_option=1 -prop=nsim_isa_sat=1 -prop=nsim_isa_mpy32=1 -prop=nsim_isa_enable_timer_0=1 -prop=nsim_isa_enable_timer_1=1 -prop=nsim_mem-dev=uart0,kind=dwuart,base=0xf0000000,irq=24 -prop=isa_counters=1 -prop=nsim_isa_pct_counters=8 -prop=nsim_isa_pct_size=48 output_hs/images/vmlinux
 
 
 Linux for ARC HS VDK