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/T2080RDB_revD_NAND_defconfig b/configs/T2080RDB_revD_NAND_defconfig
index f6eeade..e626afc 100644
--- a/configs/T2080RDB_revD_NAND_defconfig
+++ b/configs/T2080RDB_revD_NAND_defconfig
@@ -32,6 +32,7 @@
 CONFIG_SPL_NAND_SUPPORT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_IMLS=y
+CONFIG_SYS_I2C_EEPROM_ADDR_LEN=2
 CONFIG_CMD_MEMTEST=y
 CONFIG_SYS_ALT_MEMTEST=y
 CONFIG_CMD_DM=y
@@ -54,6 +55,7 @@
 CONFIG_DM=y
 CONFIG_FSL_CAAM=y
 CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_EEPROM_ADDR=0x50
 CONFIG_FSL_ESDHC=y
 CONFIG_MTD=y
 CONFIG_MTD_NOR_FLASH=y