add busybox and dropbeat initrd patch and add eit remove for old kernels

sys-kernel/recoveryinitramfs/files/dropbear/2012.55/001_all_dropbear-initramfs-no-usr.patch

@@ -0,0 +1,36 @@
+diff -uNr dropbear-2012.55.orig/options.h dropbear-2012.55/options.h
+--- dropbear-2012.55.orig/options.h	2012-12-03 11:33:02.582308907 +0100
++++ dropbear-2012.55/options.h	2012-12-03 11:34:24.309329615 +0100
+@@ -214,7 +214,7 @@
+ #define DROPBEAR_RANDOM_DEV "/dev/urandom"
+ 
+ /* prngd must be manually set up to produce output */
+-/*#define DROPBEAR_PRNGD_SOCKET "/var/run/dropbear-rng"*/
++/*#define DROPBEAR_PRNGD_SOCKET "/run/dropbear-rng"*/
+ 
+ /* Specify the number of clients we will allow to be connected but
+  * not yet authenticated. After this limit, connections are rejected */
+@@ -237,7 +237,7 @@
+ /* The default file to store the daemon's process ID, for shutdown
+    scripts etc. This can be overridden with the -P flag */
+ #ifndef DROPBEAR_PIDFILE
+-#define DROPBEAR_PIDFILE "/var/run/dropbear.pid"
++#define DROPBEAR_PIDFILE "/run/dropbear.pid"
+ #endif
+ 
+ /* The command to invoke for xauth when using X11 forwarding.
+@@ -250,12 +250,12 @@
+  * OpenSSH), set the path below. If the path isn't defined, sftp will not
+  * be enabled */
+ #ifndef SFTPSERVER_PATH
+-#define SFTPSERVER_PATH "/usr/libexec/sftp-server"
++#define SFTPSERVER_PATH "/libexec/sftp-server"
+ #endif
+ 
+ /* This is used by the scp binary when used as a client binary. If you're
+  * not using the Dropbear client, you'll need to change it */
+-#define _PATH_SSH_PROGRAM "/usr/bin/dbclient"
++#define _PATH_SSH_PROGRAM "/bin/dbclient"
+ 
+ /* Whether to log commands executed by a client. This only logs the 
+  * (single) command sent to the server, not what a user did in a