Convert CONFIG_SYS_I2C_EEPROM_ADDR et al to Kconfig

- Rename usages of CONFIG_SYS_DEF_EEPROM_ADDR to CONFIG_SYS_I2C_EEPROM_ADDR
  based on current usage.
- Convert CONFIG_SYS_I2C_EEPROM_ADDR, CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
  CONFIG_SYS_I2C_EEPROM_BUS, CONFIG_CONFIG_SYS_EEPROM_SIZE
  CONFIG_SYS_EEPROM_PAGE_WRITE_BITS and CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS
  to Kconfig.  We move these symbols around a bit and add appropriate
  dependencies to them.  In some cases, we now add a correct default value
  as well.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/uniphier_ld4_sld8_defconfig b/configs/uniphier_ld4_sld8_defconfig
index 117b760..5a2b414 100644
--- a/configs/uniphier_ld4_sld8_defconfig
+++ b/configs/uniphier_ld4_sld8_defconfig
@@ -19,6 +19,7 @@
 CONFIG_SPL_NOR_SUPPORT=y
 CONFIG_CMD_CONFIG=y
 # CONFIG_CMD_XIMG is not set
+CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=10
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
@@ -39,7 +40,6 @@
 CONFIG_GPIO_UNIPHIER=y
 CONFIG_MISC=y
 CONFIG_I2C_EEPROM=y
-CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=10
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_MMC_UNIPHIER=y
 CONFIG_MTD=y