Currently in LS1088A, XIP mode in QSPI works up to 16 MB
addresses. This patch enables QSPI support in XIP mode for
addresses above 16 MB as well.

Signed-off-by: Rajat Srivastava <rajat.srivastava@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>