decrease paddign: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nilly

   text	   data	    bss	    dec	    hex	filename
1021988	    559	   5052	1027599	  fae0f	busybox_old
1021236	    559	   5052	1026847	  fab1f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/miscutils/setserial.c b/miscutils/setserial.c
index 1e75bf4..2006861 100644
--- a/miscutils/setserial.c
+++ b/miscutils/setserial.c
@@ -381,8 +381,7 @@
 # error "Unexpected flags size"
 #endif
 
-static const uint16_t setbits[CMD_FLAG_LAST + 1] =
-{
+static const uint16_t setbits[CMD_FLAG_LAST + 1] ALIGN2 = {
 	0,
 	ASYNC_SPD_HI,
 	ASYNC_SPD_VHI,