nxp: Cleanup some emulator related options.

- Drop the emulator CONFIG test from include/configs/ls1088ardb.h
- Migrate CONFIG_SYS_FSL_DDR_EMU to a select'able option in
  drivers/ddr/fsl/Kconfig

Signed-off-by: Tom Rini <trini@konsulko.com>

README

@@ -388,10 +388,6 @@ The following options need to be configured:
 		CONFIG_SYS_FSL_DDR_ADDR
 		Freescale DDR memory-mapped register base.
 
-		CONFIG_SYS_FSL_DDR_EMU
-		Specify emulator support for DDR. Some DDR features such as
-		deskew training are not available.
-
 		CONFIG_SYS_FSL_DDRC_GEN1
 		Freescale DDR1 controller.
 

drivers/ddr/fsl/Kconfig

@@ -10,6 +10,12 @@ config SYS_FSL_MMDC
 	help
 	  Select Freescale Multi Mode DDR controller (MMDC).
 
+config SYS_FSL_DDR_EMU
+	bool
+	help
+	  Specify emulator support for DDR. Some DDR features such as deskew
+	  training are not available.
+
 if SYS_FSL_DDR || SYS_FSL_MMDC
 
 config SYS_FSL_DDR_BE

include/configs/ls1088ardb.h

@@ -15,11 +15,7 @@
 
 #define COUNTER_FREQUENCY_REAL		25000000	/* 25MHz */
 
-#ifdef CONFIG_EMU
-#define CONFIG_SYS_FSL_DDR_EMU
-#else
 #define CONFIG_MEM_INIT_VALUE		0xdeadbeef
-#endif
 #define SPD_EEPROM_ADDRESS	0x51
 #define CONFIG_SYS_SPD_BUS_NUM	0	/* SPD on I2C bus 0 */