avr32: Retire AVR32 for good

AVR32 is gone. It's already more than two years for no support in Buildroot,
even longer there is no support in GCC (last version is heavily patched 4.2.4).

Linux kernel v4.12 got rid of it (and v4.11 didn't build successfully).

There is no good point to keep this support in U-Boot either.

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
diff --git a/drivers/video/cfb_console.c b/drivers/video/cfb_console.c
index d75abb6..f548020 100644
--- a/drivers/video/cfb_console.c
+++ b/drivers/video/cfb_console.c
@@ -1968,7 +1968,7 @@
 static int cfb_fb_is_in_dram(void)
 {
 	bd_t *bd = gd->bd;
-#if defined(CONFIG_ARM) || defined(CONFIG_AVR32) || defined(CONFIG_NDS32) || \
+#if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || \
 defined(CONFIG_SANDBOX) || defined(CONFIG_X86)
 	ulong start, end;
 	int i;