Update SYSROOT_DIR assignment in build-libraries.sh and remove --disable-tls from build-toolchain.sh configuration

- Changed SYSROOT_DIR to directly reference SYSROOT for clarity.
- Removed --disable-tls option from GCC build configuration to streamline the build process.

build-toolchain.sh

@@ -125,8 +125,7 @@ mkdir -p "${BUILD_DIR}/gcc1" && cd "${BUILD_DIR}/gcc1"
     --without-cloog \
     --without-ppl \
     --disable-nls \
-    --disable-libatomic \
-    --disable-tls
+    --disable-libatomic
 
 make -j$(nproc) all-gcc
 make install-gcc
@@ -197,8 +196,7 @@ mkdir -p "${BUILD_DIR}/gcc2" && cd "${BUILD_DIR}/gcc2"
     --disable-multilib \
     --disable-bootstrap \
     --disable-libgomp \
-    --disable-libatomic \
-    --disable-tls
+    --disable-libatomic
 
 make -j$(nproc)
 make install