Merge tag 'arc-fixes-for-2019.04-rc1' of git://git.denx.de/u-boot-arc

A couple of trivial fixes and improvements for ARC

Most notable are:
 * Move of ENV_SIZE/ENV_OFFSET to Kconfig
 * Fix with private structure allocation for arc_uart
 * Definition of CONFIG_SYS_CACHELINE_SIZE useful for building drivers

include/configs/axs10x.h

@@ -45,7 +45,6 @@
 /*
  * UART configuration
  */
-#define CONFIG_DW_SERIAL
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_CLK		33333333
 #define CONFIG_SYS_NS16550_MEM32
@@ -63,7 +62,6 @@
 /*
  * Environment settings
  */
-#define CONFIG_ENV_SIZE			SZ_16K
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"upgrade=if mmc rescan && " \
 		"fatload mmc 0:1 ${loadaddr} u-boot-update.img && " \

include/configs/emsdp.h

@@ -21,7 +21,6 @@
 /*
  * Environment
  */
-#define CONFIG_ENV_SIZE			SZ_4K
 #define CONFIG_BOOTFILE			"app.bin"
 #define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
 

include/configs/hsdk.h

@@ -40,7 +40,6 @@
 /*
  * UART configuration
  */
-#define CONFIG_DW_SERIAL
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_CLK		33330000
 #define CONFIG_SYS_NS16550_MEM32
@@ -58,8 +57,6 @@
 /*
  * Environment settings
  */
-#define CONFIG_ENV_SIZE			SZ_16K
-
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"upgrade=if mmc rescan && " \
 		"fatload mmc 0:1 ${loadaddr} u-boot-update.scr && " \

include/configs/iot_devkit.h

@@ -74,7 +74,6 @@
 /*
  * Environment
  */
-#define CONFIG_ENV_SIZE			SZ_4K
 #define CONFIG_BOOTFILE			"app.bin"
 #define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
 

include/configs/nsim.h

@@ -24,12 +24,6 @@
 #define CONFIG_SYS_BOOTM_LEN		SZ_32M
 #define CONFIG_SYS_LOAD_ADDR		0x82000000
 
-/*
- * Environment settings
- */
-#define CONFIG_ENV_SIZE			SZ_512
-#define CONFIG_ENV_OFFSET		0
-
 /*
  * Environment configuration
  */

include/configs/tb100.h

@@ -52,12 +52,6 @@
  * Command line configuration
  */
 
-/*
- * Environment settings
- */
-#define CONFIG_ENV_SIZE			SZ_2K
-#define CONFIG_ENV_OFFSET		0
-
 /*
  * Environment configuration
  */