arm64: zynqmp: Disable the lock option for mini qspi

As mini configs are required only for flashing the images, so
disabling the lock config which will save nearly 6KB of memory.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/374d6b3a46d19b7ee171dfe8071676098db93e25.1697117869.git.michal.simek@amd.com
diff --git a/configs/xilinx_zynqmp_mini_qspi_defconfig b/configs/xilinx_zynqmp_mini_qspi_defconfig
index a1adfb9..4a74ca7 100644
--- a/configs/xilinx_zynqmp_mini_qspi_defconfig
+++ b/configs/xilinx_zynqmp_mini_qspi_defconfig
@@ -77,6 +77,7 @@
 # CONFIG_DM_MAILBOX is not set
 # CONFIG_MMC is not set
 # CONFIG_SPI_FLASH_SMART_HWCAPS is not set
+# CONFIG_SPI_FLASH_LOCK is not set
 # CONFIG_SPI_FLASH_UNLOCK_ALL is not set
 CONFIG_SPI_FLASH_GIGADEVICE=y
 CONFIG_SPI_FLASH_ISSI=y