linux-ixp4xx_2.6.37.bb: Adjust to OE-Core change w.r.t. ${S}
linux-ixp4xx_2.6.37.bb: Adjust to OE-Core change w.r.t. ${S}

Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

kraj/meta-nslu2,kraj/meta-nslu2