Log Message:
alsa-lib: update to 1.2.11.

Core

    Release v1.2.11
    src/Versions.in: Add guards for pcm and timer syms
    src/Versions.in: Add guards for opt. alisp symbols
    configure.ac: Update AC_OUTPUT() function
    configure: bumb version to 1.2.11pre1 (for aplay/alsa-utils)
    seq: Fix typos in symbol version definitions
    global.h: move __STRING() macro outside !PIC ifdef block
    gitcompile: Add static build

Control API

    control: remap - fix the endless loop in remap_numid_child_new()
    reshuffle included files to include config.h as first - v2
    control.h: Fix ump header file detection

Mixer API

    mixer: simple: Support dB TLVs for CTL_SINGLE controls

Mixer Abstraction API

    headers: avoid c++ keyword

PCM API

    pcm: document interaction of drain silence and sw silence
    pcm: route plugin: allocate temporary array on stack only one time
    pcm: sofvol plugin: fix signed overflow
    pcm: documentation improvement mostly regarding samples and frames
    pcm: handle start_treshold in snd_pcm_write_areas more robustly
    pcm: plug plugin - fast_ops may be changed when sw_params are set
    pcm: fix the documentation for snd_pcm_poll_descriptors again
    pcm: clarify documentation of poll descriptor usage
    pcm: clarify documentation on some hw params related functions
    pcm: Fix incompatible-pointer-type warnings
    pcm: Add MSBITS subformat options
    pcm: Introduce snd_pcm_subformat_value()
    pcm: Fix segfault with 32bit libs

RawMidi API

    reshuffle included files to include config.h as first - v2

Sequencer API

    seq: Add snd_seq_ump_ev_clear()
    seq: Check protocol compatibility with the current version
    seq: Simplify snd_seq_extract_output()
    seq: Clear UMP event flag for legacy apps
    seq: Fix invalid sanity-check in snd_seq_set_input_buffer_size()
    reshuffle included files to include config.h as first - v2

Topology API

    topology: fix Versions file
    add back Versions source file to EXTRA_DIST to fix packaging
    topology: separate Versions linker script

/src/Makefile.am

    add back Versions source file to EXTRA_DIST to fix packaging
    src/Versions.in: Add guards for pcm and timer syms
    src/Versions.in: Add guards for opt. alisp symbols

ALSA Server

    aserver: fix buffer overwriting

Configuration

    conf: pcm: Set C-Media USB 7.1 sound card (ICUSBAUDIO7D) to six_channel for \ 
surround40

Filename helpers

    reshuffle included files to include config.h as first - v2

Kernel Headers

    pcm: Add MSBITS subformat options