Move setexpr to Kconfig

Another shell scripting command that has not been moved.

Moved using tools/moveconfig.py using these settings:

CMD_SETEXPR bool n y

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/A10-OLinuXino-Lime_defconfig b/configs/A10-OLinuXino-Lime_defconfig
index 971e11a..ec978c6 100644
--- a/configs/A10-OLinuXino-Lime_defconfig
+++ b/configs/A10-OLinuXino-Lime_defconfig
@@ -7,3 +7,4 @@
 CONFIG_DEFAULT_DEVICE_TREE="sun4i-a10-olinuxino-lime"
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_EMAC,AHCI,SATAPWR=SUNXI_GPC(3),USB_EHCI"
+CONFIG_CMD_SETEXPR=y