riscv: Rename SiFive CLINT to RISC-V ALINT

As the RISC-V ACLINT specification is defined to be backward compatible
with the SiFive CLINT specification, we rename SiFive CLINT to RISC-V
ALINT in the source tree to be future-proof.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Rick Chen <rick@andestech.com>
diff --git a/drivers/timer/Makefile b/drivers/timer/Makefile
index cdc20f5..1ca7480 100644
--- a/drivers/timer/Makefile
+++ b/drivers/timer/Makefile
@@ -25,7 +25,7 @@
 obj-$(CONFIG_ROCKCHIP_TIMER) += rockchip_timer.o
 obj-$(CONFIG_SANDBOX_TIMER)	+= sandbox_timer.o
 obj-$(CONFIG_SP804_TIMER)	+= sp804_timer.o
-obj-$(CONFIG_$(SPL_)SIFIVE_CLINT) += sifive_clint_timer.o
+obj-$(CONFIG_$(SPL_)RISCV_ACLINT) += riscv_aclint_timer.o
 obj-$(CONFIG_ARM_GLOBAL_TIMER)	+= arm_global_timer.o
 obj-$(CONFIG_STM32_TIMER)	+= stm32_timer.o
 obj-$(CONFIG_TEGRA_TIMER)	+= tegra-timer.o