[MIPS] Rename tb0229_defconfig to tb0219_defconfig

tb0219 is the real board name.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/configs/tb0229_defconfig b/arch/mips/configs/tb0219_defconfig
similarity index 100%
rename from arch/mips/configs/tb0229_defconfig
rename to arch/mips/configs/tb0219_defconfig