master boots with crypto filesystems again (initrd load problem)

[Matthew Dillon]

    Master stopped working with crypto filesystems that bootstrap
    through initrd.img.gz.   This problem was due to two issues.

    The first related to the loader running out of heap memory due to
    needing a 32KB temporary buffer to gunzip.

    The second just now fixed due to mishandling of flags checks in gzipfs,
    which was triggered by part of the fix to the first issue.

    initrd image booting should now work again for crypto boots and for
    'r'escue mode boots.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>