Add UART rx, remove GPIO dependency, adjust timings

main/Kconfig

@@ -0,0 +1,12 @@
+menu "Pin Mapping Configuration"
+    config ESC_CTRL_PIN
+        int "ESC control GPIO pin"
+        default 22
+        help
+            This is the pin used for sending DSHOT packets to the ESC.
+    config TELEMETRY_RX_PIN
+        int "ESC telemetry uart rx pin"
+        default 27
+        help
+            This is the pin used for receiving UART telemetry from the ESC.
+endmenu