DO NOT MERGE: android: translate Android.mk build rules for libLLVM80

DO NOT MERGE: android: translate Android.mk build rules for libLLVM80

These changes are applied to build external/llvm80 project
and avoid conflicts with external/llvm project
Changes in mesa main Android.mk are required for libLLVM80
shared library dependency and cflag -DHAVE_LLVM=0x0800

The changelog is described by means of modules and variables
which needed to be renamed:

 #rename LLVM70 to LLVM80
find . -type f -name "*.mk" -exec sed -i 's/LLVM70/LLVM80/g' {} +

 #rename llvm70 to llvm80
find . -type f -name "*.mk" -exec sed -i 's/llvm70/llvm80/g' {} +

 #rename out70 to out80
find . -type f -name "*.mk" -exec sed -i 's/out70/out80/g' {} +

 #rename TBLGEN_TABLES70 to TBLGEN_TABLES80
find . -type f -name "*.mk" -exec sed -i 's/TBLGEN_TABLES70/TBLGEN_TABLES80/g' {} +

 #rename ATTRIBUTETD70 to ATTRIBUTETD80
find . -type f -name "*.mk" -exec sed -i 's/ATTRIBUTETD70/ATTRIBUTETD80/g' {} +

 #rename INTRINSICTD70 to INTRINSICTD80
find . -type f -name "*.mk" -exec sed -i 's/INTRINSICTD70/INTRINSICTD80/g' {} +

 #rename TBLGEN_TD_DIR70 to TBLGEN_TD_DIR80
find . -type f -name "*.mk" -exec sed -i 's/TBLGEN_TD_DIR70/TBLGEN_TD_DIR80/g' {} +

 #rename CLEAR_TBLGEN_VARS70 to CLEAR_TBLGEN_VARS80
find . -type f -name "*.mk" -exec sed -i 's/CLEAR_TBLGEN_VARS70/CLEAR_TBLGEN_VARS80/g' {} +