Fix assert caused by incorrect colorspace comparison.

Proly a copy-paste error.
This more or less shows that noone in 10+ years has used our YCbCr support.

plugins/color/lcms2engine/colorspaces/ycbcr_f32/YCbCrF32ColorSpace.cpp

@@ -17,7 +17,7 @@
 #include <kis_dom_utils.h>
 
 YCbCrF32ColorSpace::YCbCrF32ColorSpace(const QString &name, KoColorProfile *p)
-    : LcmsColorSpace<KoYCbCrF32Traits>(colorSpaceId(), name, TYPE_YCbCrA_FLT, cmsSigXYZData, p)
+    : LcmsColorSpace<KoYCbCrF32Traits>(colorSpaceId(), name, TYPE_YCbCrA_FLT, cmsSigYCbCrData, p)
 {
     const IccColorProfile *icc_p = dynamic_cast<const IccColorProfile *>(p);
     Q_ASSERT(icc_p);

plugins/color/lcms2engine/colorspaces/ycbcr_u16/YCbCrU16ColorSpace.cpp

@@ -17,7 +17,7 @@
 #include <kis_dom_utils.h>
 
 YCbCrU16ColorSpace::YCbCrU16ColorSpace(const QString &name, KoColorProfile *p)
-    : LcmsColorSpace<KoYCbCrU16Traits>(colorSpaceId(), name, TYPE_YCbCrA_16, cmsSigXYZData, p)
+    : LcmsColorSpace<KoYCbCrU16Traits>(colorSpaceId(), name, TYPE_YCbCrA_16, cmsSigYCbCrData, p)
 {
     addChannel(new KoChannelInfo(i18n("Y"),     KoYCbCrU16Traits::Y_pos     * sizeof(quint16), KoYCbCrU16Traits::Y_pos,     KoChannelInfo::COLOR, KoChannelInfo::UINT16, sizeof(quint16), Qt::cyan));
     addChannel(new KoChannelInfo(i18n("Cb"),    KoYCbCrU16Traits::Cb_pos    * sizeof(quint16), KoYCbCrU16Traits::Cb_pos,    KoChannelInfo::COLOR, KoChannelInfo::UINT16, sizeof(quint16), Qt::magenta));

plugins/color/lcms2engine/colorspaces/ycbcr_u8/YCbCrU8ColorSpace.cpp

@@ -18,7 +18,7 @@
 #include <kis_dom_utils.h>
 
 YCbCrU8ColorSpace::YCbCrU8ColorSpace(const QString &name, KoColorProfile *p)
-    : LcmsColorSpace<KoYCbCrU8Traits>(colorSpaceId(), name, TYPE_YCbCrA_8, cmsSigXYZData, p)
+    : LcmsColorSpace<KoYCbCrU8Traits>(colorSpaceId(), name, TYPE_YCbCrA_8, cmsSigYCbCrData, p)
 {
     addChannel(new KoChannelInfo(i18n("Y"),     KoYCbCrU8Traits::Y_pos     * sizeof(quint8), KoYCbCrU8Traits::Y_pos,     KoChannelInfo::COLOR, KoChannelInfo::UINT8, sizeof(quint8), Qt::cyan));
     addChannel(new KoChannelInfo(i18n("Cb"),    KoYCbCrU8Traits::Cb_pos    * sizeof(quint8), KoYCbCrU8Traits::Cb_pos,    KoChannelInfo::COLOR, KoChannelInfo::UINT8, sizeof(quint8), Qt::magenta));