[esp_ldo] Implement support for ESP32-P4 LDO (#9009)

Co-authored-by: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

tests/components/esp_ldo/test.esp32-p4-idf.yaml

@@ -0,0 +1,15 @@
+esp_ldo:
+  - id: ldo_id
+    channel: 3
+    voltage: 2.5V
+    adjustable: true
+  - id: ldo_4
+    channel: 4
+    voltage: 2.0V
+
+esphome:
+  on_boot:
+    then:
+      - esp_ldo.voltage.adjust:
+          id: ldo_id
+          voltage: !lambda return 2.5;