Add LZO compression support for initramfs and old-style initrd

Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Tested-by: Wu Zhangjin <wuzhangjin@gmail.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Russell King <rmk@arm.linux.org.uk>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/Kconfig b/lib/Kconfig
index 1cfe516..97b136f 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -117,6 +117,10 @@
 config DECOMPRESS_LZMA
 	tristate
 
+config DECOMPRESS_LZO
+	select LZO_DECOMPRESS
+	tristate
+
 #
 # Generic allocator support is selected if needed
 #