dt-bindings: watchdog: Convert TI OMAP to DT schema

Convert the TI OMAP watchdog binding to DT schema format. The compatible string list was incomplete. The "reg" and "interrupts" properties were missing. "ti,hwmods" is also deprecated and not required.

---
 .../devicetree/bindings/watchdog/omap-wdt.txt | 15 ------
 .../bindings/watchdog/ti,omap2-wdt.yaml       | 51 +++++++++++++++++++
 2 files changed, 51 insertions(+), 15 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/watchdog/omap-wdt.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/ti,omap2-wdt.yaml

deleted file mode 100644
index 1fa20e453a2d..000000000000
@@ -1,15 +0,0 @@
-TI Watchdog Timer (WDT) Controller for OMAP
-
-Required properties:
-- compatible : "ti,omap3-wdt" for OMAP3 or "ti,omap4-wdt" for OMAP4
-- ti,hwmods : Name of the hwmod associated to the WDT
-
-Optional properties:
-- timeout-sec : default watchdog timeout in seconds
-
-Examples:
-
-wdt2: wdt@4a314000 {
-	compatible = "ti,omap4-wdt", "ti,omap3-wdt";
-	ti,hwmods = "wd_timer2";
-};

2.51.0