linux-headers: bump 3.2.x series

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/linux-headers/Config.in.host

@@ -218,7 +218,7 @@ endchoice
 
 config BR2_DEFAULT_KERNEL_HEADERS
 	string
-	default "3.2.80"	if BR2_KERNEL_HEADERS_3_2
+	default "3.2.81"	if BR2_KERNEL_HEADERS_3_2
 	default "3.4.112"	if BR2_KERNEL_HEADERS_3_4
 	default "3.10.102"	if BR2_KERNEL_HEADERS_3_10
 	default "3.12.60"	if BR2_KERNEL_HEADERS_3_12