mako: cleanup unused kl, idc, kcm

- do not use mako-keypad, so remove related files.
- add keylayout and kcm for keypad_8064 and pmic8xxx_pwrkey.

Change-Id: I44d8b64b58904064ff2fa6903b7e092ce8daee05
diff --git a/keypad_8064.kl b/keypad_8064.kl
new file mode 100644
index 0000000..03ac948
--- /dev/null
+++ b/keypad_8064.kl
@@ -0,0 +1,2 @@
+key 114   VOLUME_DOWN   WAKE
+key 115   VOLUME_UP     WAKE