x86: Honor 'quiet' command line option in real mode boot decompressor.

This patch lets the early real mode code look for the 'quiet' option
on the kernel command line and pass a loadflag to the decompressor.
When this flag is set, we suppress the "Decompressing Linux... Parsing
ELF... done." messages.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/include/asm-x86/bootparam.h b/include/asm-x86/bootparam.h
index f62f473..3e36ba8 100644
--- a/include/asm-x86/bootparam.h
+++ b/include/asm-x86/bootparam.h
@@ -40,6 +40,7 @@
 	__u8	type_of_loader;
 	__u8	loadflags;
 #define LOADED_HIGH	(1<<0)
+#define QUIET_FLAG	(1<<5)
 #define KEEP_SEGMENTS	(1<<6)
 #define CAN_USE_HEAP	(1<<7)
 	__u16	setup_move_size;