Fix tizen rootfs setup for arm64 and riscv64 (#15746)

Author: gbalykov

eng/common/cross/arm64/tizen/tizen.patch

@@ -5,5 +5,5 @@ diff -u -r a/usr/lib/libc.so b/usr/lib/libc.so
     Use the shared library, but some functions are only in
     the static library, so try that secondarily.  */
  OUTPUT_FORMAT(elf64-littleaarch64)
--GROUP ( /lib64/libc.so.6 /usr/lib64/libc_nonshared.a  AS_NEEDED ( /lib/ld-linux-aarch64.so.1 ) )
+-GROUP ( /lib64/libc.so.6 /usr/lib64/libc_nonshared.a  AS_NEEDED ( /lib64/ld-linux-aarch64.so.1 ) )
 +GROUP ( libc.so.6 libc_nonshared.a  AS_NEEDED ( ld-linux-aarch64.so.1 ) )

eng/common/cross/tizen-fetch.sh

@@ -156,13 +156,8 @@ fetch_tizen_pkgs()
     done
 }
 
-if [ "$TIZEN_ARCH" == "riscv64" ]; then
-    BASE="Tizen-Base-RISCV"
-    UNIFIED="Tizen-Unified-RISCV"
-else
-    BASE="Tizen-Base"
-    UNIFIED="Tizen-Unified"
-fi
+BASE="Tizen-Base"
+UNIFIED="Tizen-Unified"
 
 Inform "Initialize ${TIZEN_ARCH} base"
 fetch_tizen_pkgs_init standard $BASE