the timers example causes the following error:
iscv-none-elf-ld: /github/workspace/sources/nuttx/staging/libapps.a(timer_main.c.github.workspace.sources.apps.examples.timer_1.o): in function timer_main:
/github/workspace/sources/apps/examples/timer/timer_main.c:209:(.text.timer_main+0x1c2): undefined reference to sigaction
riscv-none-elf-ld: /github/workspace/sources/apps/examples/timer/timer_main.c:278:(.text.timer_main+0x30e): undefined reference to sigaction
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
74f820679d