target/generic: add ttyAMAx device nodes (E.G. for qemu-system-arm)

target/generic/device_table.txt

@@ -72,6 +72,7 @@
 #/dev/ttySA	c	666	0	0	204	5	0	1	3
 /dev/psaux	c	666	0	0	10	1	0	0	-
 #/dev/ppp	c	666	0	0	108	0	-	-	-
+/dev/ttyAMA	c	666	0	0	204	64	0	1	4
 /dev/ttyPSC	c	666	0	0	204	148	0	1	4
 /dev/ttyUL	c	666	0	0	204	187	0	1	4
 

target/generic/target_busybox_skeleton/etc/securetty

@@ -10,7 +10,15 @@ ttyS0
 ttyS1
 ttyS2
 ttyS3
+ttyAMA0
+ttyAMA1
+ttyAMA2
+ttyAMA3
 ttyUL0
 ttyUL1
 ttyUL2
 ttyUL3
+ttyPSC0
+ttyPSC1
+ttyPSC2
+ttyPSC3

target/generic/target_skeleton/etc/securetty

@@ -10,6 +10,10 @@ ttyS0
 ttyS1
 ttyS2
 ttyS3
+ttyAMA0
+ttyAMA1
+ttyAMA2
+ttyAMA3
 ttyUL0
 ttyUL1
 ttyUL2