sunxi: revert disabling of features

In January some commits were introduced to mitigate the U-Boot image
size issues we encountered on sunxi builds.
Now with the MMC environment removed we can bring them back, as we
practically don't have a size limit anymore.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>

cmd/Kconfig

@@ -426,7 +426,6 @@ menu "Memory commands"
 config CMD_CRC32
 	bool "crc32"
 	select HASH
-	default n if ARCH_SUNXI
 	default y
 	help
 	  Compute CRC32.
@@ -568,7 +567,6 @@ config CMD_LZMADEC
 
 config CMD_UNZIP
 	bool "unzip"
-	default n if ARCH_SUNXI
 	default y if CMD_BOOTI
 	help
 	  Uncompress a zip-compressed memory region.
@@ -780,14 +778,12 @@ config CMD_I2C
 
 config CMD_LOADB
 	bool "loadb"
-	default n if ARCH_SUNXI
 	default y
 	help
 	  Load a binary file over serial line.
 
 config CMD_LOADS
 	bool "loads"
-	default n if ARCH_SUNXI
 	default y
 	help
 	  Load an S-Record file over serial line
@@ -1187,7 +1183,6 @@ config CMD_GETTIME
 # TODO: rename to CMD_SLEEP
 config CMD_MISC
 	bool "sleep"
-	default n if ARCH_SUNXI
 	default y
 	help
 	  Delay execution for some time

drivers/video/Kconfig

@@ -38,7 +38,6 @@ config BACKLIGHT_GPIO
 config VIDEO_BPP8
 	bool "Support 8-bit-per-pixel displays"
 	depends on DM_VIDEO
-	default n if ARCH_SUNXI
 	default y if DM_VIDEO
 	help
 	  Support drawing text and bitmaps onto a 8-bit-per-pixel display.
@@ -49,7 +48,6 @@ config VIDEO_BPP8
 config VIDEO_BPP16
 	bool "Support 16-bit-per-pixel displays"
 	depends on DM_VIDEO
-	default n if ARCH_SUNXI
 	default y if DM_VIDEO
 	help
 	  Support drawing text and bitmaps onto a 16-bit-per-pixel display.

lib/Kconfig

@@ -66,7 +66,6 @@ config PANIC_HANG
 
 config REGEX
 	bool "Enable regular expression support"
-	default n if ARCH_SUNXI
 	default y if NET
 	help
 	  If this variable is defined, U-Boot is linked against the