[Keyboard] Uthol (#16393)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/handwired/uthol/rev1/rules.mk

@@ -0,0 +1,13 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes
+EXTRAKEY_ENABLE = yes
+NKRO_ENABLE = yes
+LTO_ENABLE = yes