imlib2: upgrade 1.12.5 -> 1.12.6

Changelog:
==========
- Y4M loader: add support for 10-bit 4:4:4
- Y4M loader: add support for 10-bit 4:2:2
- Y4M loader: add example for 8-bit mono
- Y4M loader: add support for 10-bit mono
- Y4M loader: fix support for full-range mono
- Y4M loader: fix support for odd dimensions
- Y4M loader: add support for 12/14/16-bit mono
- test/images: Remove intermediate generated file
- imlib2_view: Set title
- imlib2_view: Scale image when resizing window
- imlib2_view: A couple of fixes to previous commit
- test_load_2: Add new y4m test images
- test_load_2: Add more new y4m test images
- test_load_2: Add more new y4m test images
- autofoo: Use AM_LIBTOOLFLAGS, not LIBTOOLFLAGS
- gradients: Fix rendering of gradients in larger images
- imlib2_conv: Fix constness warning
- gradients: Better gradients with angles
- Compile cleanly with -Wdouble-promotion
- XPM loader: Add missing progress callback on incomplete image data

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-graphics/imlib2/imlib2_1.12.6.bb

@@ -7,14 +7,13 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=344895f253c32f38e182dcaf30fe8a35"
 
 DEPENDS = "freetype "
 PROVIDES = "virtual/imlib2"
-PV = "1.12.5"
-SRCREV = "df73df52ddf0e1ea40507f5ee8c6b794b328b3bc"
+SRCREV = "8c6a7640c91d7815a6318d3641554869c62cc926"
 
 inherit autotools pkgconfig lib_package
 
 AUTO_LIBNAME_PKGS = ""
 
-SRC_URI = "git://git.enlightenment.org/old/legacy-${BPN}.git;protocol=https;branch=master"
+SRC_URI = "git://git.enlightenment.org/old/legacy-${BPN}.git;protocol=https;branch=master;tag=v${PV}"
 
 PACKAGECONFIG ??= "jpeg png zlib ${@bb.utils.filter('DISTRO_FEATURES', 'x11', d)}"