bblayers_mtk: Remove mtk-specific poky

bblayers_mtk.conf

@@ -7,8 +7,8 @@ BSPDIR := "${@os.path.abspath(os.path.dirname(d.getVar('FILE', True)) + '/../..'
 
 BBFILES ?= ""
 BBLAYERS = " \
-  ${BSPDIR}/sources/poky_mtk/meta \
-  ${BSPDIR}/sources/poky_mtk/meta-poky \
+  ${BSPDIR}/sources/poky/meta \
+  ${BSPDIR}/sources/poky/meta-poky \
   ${BSPDIR}/sources/meta-arm/meta-arm \
   ${BSPDIR}/sources/meta-arm/meta-arm-toolchain \
   ${BSPDIR}/sources/meta-security \