sunxi: A64: fix default DRAM_ODT_EN symbol

"default" lines in Kconfig are processed in order, the first hit will
stop considering subsequent lines. In the case of the DRAM_ODT_EN symbol
that means that everything following the first two lines will never be
checked:
------------
config DRAM_ODT_EN
	bool "sunxi dram odt enable"
	default n if !MACH_SUN8I_A23
	default y if MACH_SUN8I_A23
	default y if MACH_SUN8I_R40
	default y if MACH_SUN50I
------------

Assuming that the "default y" for the A64 and the R40 were a deliberate
choice, fix the Kconfig stanza to take this into account.
Also remove the now redundant lines from the respective defconfigs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[jagan: droped 'default n' on original change]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # A64, R40
Tested-by: Chen-Yu Tsai <wens@csie.org> # A23

arch/arm/mach-sunxi/Kconfig

@@ -417,7 +417,6 @@ config DRAM_ZQ
 
 config DRAM_ODT_EN
 	bool "sunxi dram odt enable"
-	default n if !MACH_SUN8I_A23
 	default y if MACH_SUN8I_A23
 	default y if MACH_SUN8I_R40
 	default y if MACH_SUN50I

configs/Bananapi_M2_Ultra_defconfig

@@ -4,7 +4,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN8I_R40=y
 CONFIG_DRAM_CLK=576
 CONFIG_DRAM_ZQ=3881979
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MACPWR="PA17"
 CONFIG_MMC0_CD_PIN="PH13"
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2

configs/amarula_a64_relic_defconfig

@@ -3,7 +3,6 @@ CONFIG_ARCH_SUNXI=y
 CONFIG_SPL=y
 CONFIG_MACH_SUN50I=y
 CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER=y
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 # CONFIG_VIDEO_DE2 is not set
 CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-amarula-relic"

configs/bananapi_m2_berry_defconfig

@@ -4,7 +4,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN8I_R40=y
 CONFIG_DRAM_CLK=576
 CONFIG_DRAM_ZQ=3881979
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MMC0_CD_PIN="PH13"
 CONFIG_DEFAULT_DEVICE_TREE="sun8i-v40-bananapi-m2-berry"
 CONFIG_AHCI=y

configs/sopine_baseboard_defconfig

@@ -6,7 +6,6 @@ CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER=y
 CONFIG_SUNXI_DRAM_LPDDR3_STOCK=y
 CONFIG_DRAM_CLK=552
 CONFIG_DRAM_ZQ=3881949
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MMC0_CD_PIN=""
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_SPL_SPI_SUNXI=y