Add support for 5.11 RC

(targets 5.11 rc2 by default as it's the current latest)

linux-tkg-patches/5.11/0012-misc-additions.patch

@@ -0,0 +1,54 @@
+diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
+index 0840d27381ea..73aba9a31064 100644
+--- a/drivers/tty/Kconfig
++++ b/drivers/tty/Kconfig
+@@ -75,6 +75,19 @@ config VT_CONSOLE_SLEEP
+ 	def_bool y
+ 	depends on VT_CONSOLE && PM_SLEEP
+ 
++config NR_TTY_DEVICES
++        int "Maximum tty device number"
++        depends on VT
++        range 12 63
++        default 63
++        help
++          This option is used to change the number of tty devices in /dev.
++          The default value is 63. The lowest number you can set is 12,
++          63 is also the upper limit so we don't overrun the serial
++          consoles.
++
++          If unsure, say 63.
++
+ config HW_CONSOLE
+ 	bool
+ 	depends on VT && !UML
+diff --git a/include/uapi/linux/vt.h b/include/uapi/linux/vt.h
+index e9d39c48520a..3bceead8da40 100644
+--- a/include/uapi/linux/vt.h
++++ b/include/uapi/linux/vt.h
+@@ -3,12 +3,25 @@
+ #define _UAPI_LINUX_VT_H
+ 
+ 
++/*
++ * We will make this definition solely for the purpose of making packages
++ * such as splashutils build, because they can not understand that
++ * NR_TTY_DEVICES is defined in the kernel configuration.
++ */
++#ifndef CONFIG_NR_TTY_DEVICES
++#define CONFIG_NR_TTY_DEVICES 63
++#endif
++
+ /*
+  * These constants are also useful for user-level apps (e.g., VC
+  * resizing).
+  */
+ #define MIN_NR_CONSOLES 1       /* must be at least 1 */
+-#define MAX_NR_CONSOLES	63	/* serial lines start at 64 */
++/*
++ * NR_TTY_DEVICES:
++ * Value MUST be at least 12 and must never be higher then 63
++ */
++#define MAX_NR_CONSOLES CONFIG_NR_TTY_DEVICES	/* serial lines start above this */
+ 		/* Note: the ioctl VT_GETSTATE does not work for
+ 		   consoles 16 and higher (since it returns a short) */