Input: add definitions for frame forward and frame back keys

Signed-off-by: NAristeu Rozanski <aris@ruivo.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

include/linux/input.h

@@ -530,6 +530,9 @@ struct input_absinfo {
 #define KEY_DOLLAR		0x1b2
 #define KEY_EURO		0x1b3
 
+#define KEY_FRAMEBACK		0x1b4	/* Consumer - transport controls */
+#define KEY_FRAMEFORWARD	0x1b5
+
 #define KEY_DEL_EOL		0x1c0
 #define KEY_DEL_EOS		0x1c1
 #define KEY_INS_LINE		0x1c2