pixman: upgrade to 0.32.6

Revert a patch to the MIPS-specific code that was causing compile failures.

(From OE-Core rev: ace56dcd6eed1ab92af9bdf5bd6d9b11e35a0917)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/xorg-lib/pixman/mips-export-revert.patch

@@ -0,0 +1,22 @@
+Revert a commit in pixman 0.32.6 which breaks compliation on MIPS machines with
+errors such as:
+
+pixman-0.32.6/pixman/pixman-mips-dspr2-asm.S:4267:
+Error: invalid operands `mflo $14,$ac3'
+
+Upstream-Status: Pending
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+--- b/pixman/pixman-mips-dspr2-asm.h
++++ a/pixman/pixman-mips-dspr2-asm.h
+@@ -72,10 +72,7 @@
+ #define LEAF_MIPS32R2(symbol)                           \
+                 .globl  symbol;                         \
+                 .align  2;                              \
+-#ifdef __ELF__
+-                .hidden symbol;                         \
+                 .type   symbol, @function;              \
+-#endif
+                 .ent    symbol, 0;                      \
+ symbol:         .frame  sp, 0, ra;                      \
+                 .set    push;                           \

meta/recipes-graphics/xorg-lib/pixman_0.32.6.bb

@@ -29,9 +29,10 @@ EXTRA_OECONF_class-native = "--disable-gtk"
 
 SRC_URI += "\
             file://0001-ARM-qemu-related-workarounds-in-cpu-features-detecti.patch \
+            file://mips-export-revert.patch \
 "
 
-SRC_URI[md5sum] = "cdb566504fe9daf6728c7b03cc7ea228"
-SRC_URI[sha256sum] = "ae2bd664057e330d41b40336ed296d3512318ce7f2401cc42601f2613d371e4c"
+SRC_URI[md5sum] = "8a9e8f14743a39cf303803f369c1f344"
+SRC_URI[sha256sum] = "201fc0d7d6bc0017496f2bd27b3ca14224aea0df6b624c5ee2dc0307a4ff14a4"
 
 REQUIRED_DISTRO_FEATURES = ""