fix(rootfs): fix fast_page_fault_helper compilation

There was a compilation error in the file where getopt_long expects argc
and argv arguments of main() but these weren't declared. Maybe a rebase
gone bad(?)

Signed-off-by: Babis Chalios <[email protected]>

Author: bchalios

resources/overlay/usr/local/bin/fast_page_fault_helper.c

@@ -29,15 +29,14 @@ void touch_memory(void *mem, size_t size, char val) {
     }
 }
 
-int main() {
+int main(int argc, char *argv[]) {
     sigset_t set;
     int signal, character;
     void *ptr;
     struct timespec start, end;
     long duration_nanos;
     FILE *out_file;
 
-    char *options = 0;
     int longindex = 0;
     int signal_wait = 1;