[MIPS] Enable tmpfs for anything that possibly runs a full distribution.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index 9f22d13e..cc9b24e 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -1012,7 +1012,7 @@
 CONFIG_PROC_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_SYSFS=y
-# CONFIG_TMPFS is not set
+CONFIG_TMPFS=y
 # CONFIG_HUGETLB_PAGE is not set
 CONFIG_RAMFS=y
 # CONFIG_CONFIGFS_FS is not set