input: Add default mapping for the hiragana/katakana key.

drivers/input/keyboard/atkbd.c

@@ -39,7 +39,7 @@ static int atkbd_reset = 1;
 
 static unsigned char atkbd_set2_keycode[512] = {
 	  0, 67, 65, 63, 61, 59, 60, 88,  0, 68, 66, 64, 62, 15, 41, 85,
-	  0, 56, 42,  0, 29, 16,  2, 89,  0,  0, 44, 31, 30, 17,  3, 90,
+	  0, 56, 42,182, 29, 16,  2, 89,  0,  0, 44, 31, 30, 17,  3, 90,
 	  0, 46, 45, 32, 18,  5,  4, 91,  0, 57, 47, 33, 20, 19,  6,  0,
 	  0, 49, 48, 35, 34, 21,  7,  0,  0,  0, 50, 36, 22,  8,  9,  0,
 	  0, 51, 37, 23, 24, 11, 10,  0,  0, 52, 53, 38, 39, 25, 12,  0,