IMAGE_ROOTFS_SIZE Cleanup

This basic cleanup removes the _ext2/3 overrides from places they
no longer belong since they did not allow further overrides. In doing
this the core-image-minimal* recipes can now set a reasonably small
rootfs so that it's a realistic size for minimal.

The new default for minimal is 8M and will be adujsted upward by the
IMAGE_OVERHEAD_FACTOR (default of 1.3).

This also fixes the ROOTFS_SIZE usage in the IMAGE_CMD_<fstype> code

(From OE-Core rev: d3f6e1e6106ab539e73c19037915b2e4a5f2efa9)

Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/conf/bitbake.conf

@@ -645,10 +645,6 @@ PCMCIA_MANAGER ?= "pcmcia-cs"
 DEFAULT_TASK_PROVIDER ?= "task-base"
 MACHINE_TASK_PROVIDER ?= "${DEFAULT_TASK_PROVIDER}"
 IMAGE_ROOTFS_SIZE ?= "65536"
-IMAGE_ROOTFS_SIZE_ext2 ?= "65536"
-IMAGE_ROOTFS_SIZE_ext2.gz ?= "65536"
-IMAGE_ROOTFS_SIZE_ext3 ?= "65536"
-IMAGE_ROOTFS_SIZE_ext3.gz ?= "65536"
 
 # Forcefully set CACHE now so future changes to things like 
 # MACHINE don't change the path to the cache

meta/conf/distro/include/default-distrovars.inc

@@ -1,7 +1,5 @@
 QA_LOGFILE = "${TMPDIR}/qa.log"
 
-IMAGE_ROOTFS_SIZE_ext2 ?= "131072"
-
 OEINCLUDELOGS ?= "yes"
 KERNEL_CONSOLE ?= "ttyS0"
 

meta/conf/machine/include/qemu.inc

@@ -6,8 +6,6 @@ MACHINE_FEATURES = "kernel26 apm alsa pcmcia bluetooth irda usbgadget screen"
 IMAGE_FSTYPES ?= "tar.bz2 ext3"
 
 ROOT_FLASH_SIZE = "280"
-IMAGE_ROOTFS_SIZE_ext2 ?= "280000"
-IMAGE_ROOTFS_SIZE_ext3 ?= "280000"
 
 # Don't include kernels in standard images
 RDEPENDS_kernel-base = ""