arch: unicore32: ksyms: export additional find_first_*() to avoid compiling failure

Some modules need find_first_bit() and find_first_zero_bit(), so export
them.

The related error (with allmodconfig under unicore32):

MODPOST 4039 modules
ERROR: "find_first_bit" [sound/soc/codecs/snd-soc-uda1380.ko] undefined!
ERROR: "find_first_zero_bit" [net/sctp/sctp.ko] undefined!
...

Signed-off-by: Chen Gang <[e-mail]>
Acked-by: Xuetao Guan <[e-mail]>
Signed-off-by: Xuetao Guan <[e-mail]>

arch/unicore32/kernel/ksyms.c

···
 
 #include "ksyms.h"
 
+EXPORT_SYMBOL(find_first_bit);
+EXPORT_SYMBOL(find_first_zero_bit);
 EXPORT_SYMBOL(find_next_zero_bit);
 EXPORT_SYMBOL(find_next_bit);