env: Finish migration of common ENV options

- In ARMv8 NXP Layerscape platforms we also need to make use of
  CONFIG_SYS_RELOC_GD_ENV_ADDR now, do so.
- On ENV_IS_IN_REMOTE, CONFIG_ENV_OFFSET is never used, drop the define
  to 0.
- Add Kconfig entry for ENV_ADDR.
- Make ENV_ADDR / ENV_OFFSET depend on the env locations that use it.
- Add ENV_xxx_REDUND options that depend on their primary option and
  SYS_REDUNDAND_ENVIRONMENT
- On a number of PowerPC platforms, use SPL_ENV_ADDR not CONFIG_ENV_ADDR
  for the pre-main-U-Boot environment location.
- On ENV_IS_IN_SPI_FLASH, check not for CONFIG_ENV_ADDR being set but
  rather it being non-zero, as it will now be zero by default.
- Rework the env_offset absolute in env/embedded.o to not use
  CONFIG_ENV_OFFSET as it was the only use of ENV_OFFSET within
  ENV_IS_IN_FLASH.
- Migrate all platforms.

Cc: Wolfgang Denk <wd@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: uboot-stm32@st-md-mailman.stormreply.com
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
diff --git a/include/configs/B4860QDS.h b/include/configs/B4860QDS.h
index 3ccd092..d213375 100644
--- a/include/configs/B4860QDS.h
+++ b/include/configs/B4860QDS.h
@@ -96,25 +96,8 @@
 #define CONFIG_ENV_OVERWRITE
 
 #if defined(CONFIG_SPIFLASH)
-#define CONFIG_ENV_SIZE                 0x2000          /* 8KB */
-#define CONFIG_ENV_OFFSET               0x100000        /* 1MB */
-#define CONFIG_ENV_SECT_SIZE            0x10000
 #elif defined(CONFIG_SDCARD)
 #define CONFIG_SYS_MMC_ENV_DEV          0
-#define CONFIG_ENV_SIZE			0x2000
-#define CONFIG_ENV_OFFSET		(512 * 1097)
-#elif defined(CONFIG_NAND)
-#define CONFIG_ENV_SIZE			0x2000
-#define CONFIG_ENV_OFFSET		(10 * CONFIG_SYS_NAND_BLOCK_SIZE)
-#elif defined(CONFIG_SRIO_PCIE_BOOT_SLAVE)
-#define CONFIG_ENV_ADDR		0xffe20000
-#define CONFIG_ENV_SIZE		0x2000
-#elif defined(CONFIG_ENV_IS_NOWHERE)
-#define CONFIG_ENV_SIZE		0x2000
-#else
-#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
-#define CONFIG_ENV_SIZE		0x2000
-#define CONFIG_ENV_SECT_SIZE	0x20000 /* 128K (one sector) */
 #endif
 
 #ifndef __ASSEMBLY__
@@ -154,9 +137,7 @@
 #define CONFIG_SYS_INIT_L3_ADDR		0xFFFC0000
 #define CONFIG_SYS_L3_SIZE		256 << 10
 #define CONFIG_SPL_GD_ADDR		(CONFIG_SYS_INIT_L3_ADDR + 32 * 1024)
-#ifdef CONFIG_NAND
-#define CONFIG_ENV_ADDR			(CONFIG_SPL_GD_ADDR + 4 * 1024)
-#endif
+#define SPL_ENV_ADDR			(CONFIG_SPL_GD_ADDR + 4 * 1024)
 #define CONFIG_SPL_RELOC_MALLOC_ADDR	(CONFIG_SPL_GD_ADDR + 12 * 1024)
 #define CONFIG_SPL_RELOC_MALLOC_SIZE	(30 << 10)
 #define CONFIG_SPL_RELOC_STACK		(CONFIG_SPL_GD_ADDR + 64 * 1024)