ARM: atmel: boards: use default CONFIG_SYS_PBSIZE

Entering the maximum number of characters defined by CONFIG_SYS_CBSIZE
into the console and hitting enter afterwards, causes a hang in the
system because CONFIG_SYS_PBSIZE is not capable of storing the extra
characters of the error message:
"Unknown command '' - try 'help'".

Use the default CONFIG_SYS_PBSIZE definition from config_fallbacks.h
to solve this problem.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>

include/configs/at91-sama5_common.h

@@ -105,8 +105,6 @@
 
 #define CONFIG_SYS_CBSIZE		256
 #define CONFIG_SYS_MAXARGS		16
-#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
-					sizeof(CONFIG_SYS_PROMPT) + 16)
 #define CONFIG_SYS_LONGHELP
 #define CONFIG_CMDLINE_EDITING
 #define CONFIG_AUTO_COMPLETE

include/configs/at91sam9260ek.h

@@ -256,7 +256,6 @@
 
 #define CONFIG_SYS_CBSIZE		256
 #define CONFIG_SYS_MAXARGS		16
-#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
 #define CONFIG_SYS_LONGHELP		1
 #define CONFIG_CMDLINE_EDITING	1
 #define CONFIG_AUTO_COMPLETE

include/configs/at91sam9261ek.h

@@ -203,7 +203,6 @@
 
 #define CONFIG_SYS_CBSIZE		256
 #define CONFIG_SYS_MAXARGS		16
-#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
 #define CONFIG_SYS_LONGHELP
 #define CONFIG_CMDLINE_EDITING
 #define CONFIG_AUTO_COMPLETE

include/configs/at91sam9263ek.h

@@ -332,7 +332,6 @@
 
 #define CONFIG_SYS_CBSIZE		256
 #define CONFIG_SYS_MAXARGS		16
-#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
 #define CONFIG_SYS_LONGHELP		1
 #define CONFIG_CMDLINE_EDITING		1
 #define CONFIG_AUTO_COMPLETE

include/configs/at91sam9m10g45ek.h

@@ -183,7 +183,6 @@
 
 #define CONFIG_SYS_CBSIZE		256
 #define CONFIG_SYS_MAXARGS		16
-#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
 #define CONFIG_SYS_LONGHELP
 #define CONFIG_CMDLINE_EDITING
 #define CONFIG_AUTO_COMPLETE

include/configs/at91sam9n12ek.h

@@ -223,8 +223,6 @@
 
 #define CONFIG_SYS_CBSIZE	256
 #define CONFIG_SYS_MAXARGS	16
-#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) \
-					+ 16)
 #define CONFIG_SYS_LONGHELP
 #define CONFIG_CMDLINE_EDITING
 #define CONFIG_AUTO_COMPLETE

include/configs/at91sam9rlek.h

@@ -186,7 +186,6 @@
 
 #define CONFIG_SYS_CBSIZE		256
 #define CONFIG_SYS_MAXARGS		16
-#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
 #define CONFIG_SYS_LONGHELP		1
 #define CONFIG_CMDLINE_EDITING		1
 #define CONFIG_AUTO_COMPLETE

include/configs/at91sam9x5ek.h

@@ -225,8 +225,6 @@
 
 #define CONFIG_SYS_CBSIZE	256
 #define CONFIG_SYS_MAXARGS	16
-#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) \
-					+ 16)
 #define CONFIG_SYS_LONGHELP
 #define CONFIG_CMDLINE_EDITING
 #define CONFIG_AUTO_COMPLETE