ARM: dts: ls1021a: Add quirk for Erratum A009116

Add "snps,quirk-frame-length-adjustment" property to
USB3 node for erratum A009116. This property provides
value of GFLADJ_30MHZ for post silicon frame length
adjustment.

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>