tests: benchmarks: i2c_endless: fix nrf5340 and disable zephyr driver

Set status "okay" for the i2c2 devicetree node for the nrf5340, and
disable the zephyr TWIS device driver since its not used and may
conflict with directly using nrfx as this test does.

Unquarantine the test cases as it is now fixed.

Signed-off-by: Bjarki Arge Andreasen <[email protected]>
(cherry picked from commit d0f84cb)

Author: bjarki-andreasen

scripts/quarantine.yaml

@@ -120,10 +120,3 @@
   platforms:
     - [email protected]/nrf54ls05b/cpuapp
   comment: "https://nordicsemi.atlassian.net/browse/NCSDK-36650"
-
-- scenarios:
-    - boards.nrf.i2c.i2c_endless.host
-    - boards.nrf.i2c.i2c_endless.device
-  platforms:
-    - nrf5340dk/nrf5340/cpuapp
-  comment: "https://nordicsemi.atlassian.net/browse/NCSDK-36649"

tests/benchmarks/i2c_endless/boards/nrf5340dk_nrf5340_cpuapp.overlay

@@ -56,6 +56,7 @@
 
 &i2c2 {
 	compatible = "nordic,nrf-twis";
+	status = "okay";
 	pinctrl-0 = <&i2c2_default_alt>;
 	pinctrl-1 = <&i2c2_sleep_alt>;
 	pinctrl-names = "default", "sleep";