package/qt5/qt5webkit: disable JIT with mips32r6

Disable JIT with mips32r6 to avoid the following build failure raised
since bump to version 5.212.0-alpha4 in commit
df0b0fe6919c0d0f3750f439a3cfa765232bd569:

/tmp/ccHw2rHQ.s:18: Error: opcode not supported on this processor: mips32r6 (mips32r6) `addi $a0,$sp,-8'

Fixes:
 - http://autobuild.buildroot.org/results/5191600b463cda078203eeffae880ed989f8ac0f

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qt5/qt5webkit/qt5webkit.mk

@@ -20,6 +20,10 @@ QT5WEBKIT_LICENSE = LGPL-2.1+, BSD-3-Clause, BSD-2-Clause
 # in the archive.
 QT5WEBKIT_LICENSE_FILES += LICENSE.LGPLv21
 
+ifeq ($(BR2_MIPS_CPU_MIPS32R6),y)
+QT5WEBKIT_CONF_OPTS += -DENABLE_JIT=OFF
+endif
+
 ifeq ($(BR2_PACKAGE_QT5BASE_OPENGL),y)
 QT5WEBKIT_CONF_OPTS += \
 	-DENABLE_OPENGL=ON \