kernel/linux: use CT_ARCH, in place of CT_KERNEL_ARCH

Since we merged the 32/64-bit archs, and we explicitly used
the Linux kernel arch name, we can get rid of CT_KERNEL_ARCH.

docs: do not document CT_KERNEL_ARCH, it's going away...

Since we merged the 32/64-bit archs, and we explicitly used
the Linux kernel arch name, we can get rid of CT_KERNEL_ARCH.

debug/gdb: fix the space-damage

debug/gdb: do not expose the ncurses version in the menuconfig

Merge.

scripts/functions: inverse log level ALL and DEBUG

configure: do not require hg when configuring in an hg clone

When configuring in an hg clone, we need hg to compute the version string.
It can happen that users do not have Mercurial (eg. if they got a snapshot
rather that they did a full clone). In this case, we can still run, of
course, so simply fill the version string with a sufficiently explicit
value, that does not require hg. The date is a good candidate.

configure: silently ignore auto-stuff options --build --host and friends

libc/uClibc: rename patches for 0.9.30.2

Port uClibc patches to 0.9.30.2

Some patches from 0.9.30.1 now applied upstream. The reminder have
been only slightly modified to apply cleanly to the new base.

Signed-off-by: Joachim Nilsson <jocke@vmlinux.org>