Convert CONFIG_MISC_INIT_R to Kconfig

This converts the following to Kconfig:
   CONFIG_MISC_INIT_R

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Update the defaults logic slightly]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ls1046aqds_qspi_defconfig b/configs/ls1046aqds_qspi_defconfig
index 0225583..83c0efe 100644
--- a/configs/ls1046aqds_qspi_defconfig
+++ b/configs/ls1046aqds_qspi_defconfig
@@ -12,6 +12,7 @@
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/ram0 earlycon=uart8250,mmio,0x21c0500 mtdparts=1550000.quadspi:2m(uboot),14m(free)"
 # CONFIG_USE_BOOTCOMMAND is not set
+CONFIG_MISC_INIT_R=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GREPENV=y
 CONFIG_CMD_MEMINFO=y
@@ -33,7 +34,6 @@
 CONFIG_SPI_FLASH=y
 # CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
 CONFIG_PHYLIB=y
-CONFIG_NETDEVICES=y
 CONFIG_E1000=y
 CONFIG_PCI=y
 CONFIG_DM_PCI=y