ar71xx: unify CONFIG_CMDLINE

Booting from jffs2 directly is no longer supported, use
rootfstype=squashfs consistently for all subtargets

Signed-off-by: Felix Fietkau <nbd@nbd.name>

target/linux/ar71xx/config-4.4

@@ -260,7 +260,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CEVT_R4K=y
 CONFIG_CLKDEV_LOOKUP=y
 CONFIG_CLONE_BACKWARDS=y
-CONFIG_CMDLINE="rootfstype=squashfs,jffs2 noinitrd"
+CONFIG_CMDLINE="rootfstype=squashfs noinitrd"
 CONFIG_CMDLINE_BOOL=y
 # CONFIG_CMDLINE_OVERRIDE is not set
 CONFIG_COMMON_CLK=y

target/linux/ar71xx/generic/config-default

@@ -1 +0,0 @@
-CONFIG_CMDLINE="rootfstype=squashfs,jffs2 noinitrd"

target/linux/ar71xx/mikrotik/config-default

@@ -212,7 +212,6 @@ CONFIG_ATH79_MACH_RBSXTLITE=y
 # CONFIG_ATH79_MACH_ZCN_1523H is not set
 # CONFIG_ATH79_NVRAM is not set
 CONFIG_ATH79_ROUTERBOOT=y
-CONFIG_CMDLINE="rootfstype=squashfs noinitrd"
 CONFIG_CRC16=y
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_GPIO_LATCH=y

target/linux/ar71xx/nand/config-default

@@ -209,7 +209,6 @@ CONFIG_ATH79_MACH_Z1=y
 # CONFIG_ATH79_MACH_ZBT_WE1526 is not set
 # CONFIG_ATH79_MACH_ZCN_1523H is not set
 CONFIG_BCH=y
-CONFIG_CMDLINE="rootfstype=squashfs noinitrd"
 CONFIG_CRC16=y
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRYPTO_LZO=y