This changes enables the QSPI_LAYOUT_SWITCH config
which is required for QSPI nand 4k support.
Since SBL must be flashed in 2K layout to support
QSPI Nand-4K, this dynamic switch is required.
Change-Id: I95a68ec9238dd83306322bc57cf93b162e3179f5
Signed-off-by: Vandhiadevan Karunamoorthy <quic_vkarunam@quicinc.com>