timer: Add _TIMER suffix to Andes PLMT Kconfig

This matches the naming scheme of other timer drivers.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Rick Chen <rick@andestech.com>
diff --git a/arch/riscv/cpu/ax25/Kconfig b/arch/riscv/cpu/ax25/Kconfig
index 5cb5bb5..327b74e 100644
--- a/arch/riscv/cpu/ax25/Kconfig
+++ b/arch/riscv/cpu/ax25/Kconfig
@@ -5,7 +5,7 @@
 	imply CPU_RISCV
 	imply RISCV_TIMER if (RISCV_SMODE || SPL_RISCV_SMODE)
 	imply ANDES_PLIC if (RISCV_MMODE || SPL_RISCV_MMODE)
-	imply ANDES_PLMT if (RISCV_MMODE || SPL_RISCV_MMODE)
+	imply ANDES_PLMT_TIMER if (RISCV_MMODE || SPL_RISCV_MMODE)
 	imply SPL_CPU_SUPPORT
 	imply SPL_OPENSBI
 	imply SPL_LOAD_FIT