Twister: Rework integration with renode-test

Initial integration with renode-test was introduced in commit bdf02ff,
which added support for calling the `renode-test` command from both west
and twister.

This commit removes the custom run_renode_test target used for running
Robot tests with the `west build` command and makes twister call
`renode-test` directly instead.

Signed-off-by: Michał Szprejda <mszprejda@antmicro.com>

boards/microchip/m2gl025_miv/m2gl025_miv.yaml

@@ -12,4 +12,7 @@ testing:
   ignore_tags:
     - net
     - bluetooth
+  renode:
+    uart: sysbus.uart
+    resc: boards/microchip/m2gl025_miv/support/m2gl025_miv.resc
 vendor: microchip

boards/renode/riscv32_virtual/riscv32_virtual.yaml

@@ -12,5 +12,8 @@ testing:
   ignore_tags:
     - net
     - bluetooth
+  renode:
+    uart: sysbus.uart0
+    resc: boards/renode/riscv32_virtual/support/riscv32_virtual.resc
 supported:
   - uart

boards/sifive/hifive1/hifive1.yaml

@@ -19,4 +19,7 @@ testing:
     - bluetooth
     - flash
     - newlib
+  renode:
+    uart: sysbus.uart0
+    resc: boards/sifive/hifive1/support/hifive1.resc
 vendor: sifive

boards/sifive/hifive_unleashed/hifive_unleashed.yaml

@@ -14,6 +14,9 @@ testing:
     - flash
     - newlib
     - crypto
+  renode:
+    uart: sysbus.uart0
+    resc: boards/sifive/hifive_unleashed/support/hifive_unleashed.resc
 supported:
   - gpio
   - spi

boards/sifive/hifive_unmatched/hifive_unmatched.yaml

@@ -11,6 +11,9 @@ testing:
   ignore_tags:
     - net
     - bluetooth
+  renode:
+    uart: sysbus.uart0
+    resc: boards/sifive/hifive_unmatched/support/hifive_unmatched.resc
 supported:
   - spi
   - memc