lib: utils/timer: Generate FDT timer driver list at compile-time

Instead of having FDT timer driver list hard-coded in the C source,
we generate it using carray.sh at compile-time.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>

lib/utils/timer/objects.mk

@@ -8,5 +8,9 @@
 #
 
 libsbiutils-objs-y += timer/aclint_mtimer.o
+
 libsbiutils-objs-y += timer/fdt_timer.o
+libsbiutils-objs-y += timer/fdt_timer_drivers.o
+
+carray-fdt_timer_drivers-y += fdt_timer_mtimer
 libsbiutils-objs-y += timer/fdt_timer_mtimer.o