musl: Upgrade to tip of tree
Includes misc minor bugs fixes:
0ed932f do not define static_assert macro for pre-C11 compilers
692b16d add declarations for utmpname/utmpxname to appropriate headers
500c688 fix return value for fread/fwrite when size argument is 0
416d1c7 fix line-buffered flush omission for odd usage of putc-family functions
5a6e8d0 fix failed write reporting by fwrite in line-buffered mode
869a9df remove workaround for broken mips assemblers
The addition of utmpname/utmpxname prototypes fixes a change
introduced in the previous git snapshot version which broke lxc.
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
