common: delete CONFIG_SYS_64BIT_VSPRINTF and CONFIG_SYS_64BIT_STRTOUL

There is more and more usage of printing 64bit values,
so enable this feature generally, and delete the
CONFIG_SYS_64BIT_VSPRINTF and CONFIG_SYS_64BIT_STRTOUL
defines.

Signed-off-by: Heiko Schocher <hs@denx.de>

disk/part.c

diff --git a/disk/part.c b/disk/part.c
index 9ced452..b6bae17 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -196,7 +196,7 @@
 		if (dev_desc->lba48)
 			printf ("            Supports 48-bit addressing\n");
 #endif
-#if defined(CONFIG_SYS_64BIT_LBA) && defined(CONFIG_SYS_64BIT_VSPRINTF)
+#if defined(CONFIG_SYS_64BIT_LBA)
 		printf ("            Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n",
 			mb_quot, mb_rem,
 			gb_quot, gb_rem,