Staging: rt3090: disable HAS_ANTENNA_DIVERSITY_SUPPORT option

This makes rt3090 match other Ralink drivers and V2.2.0.0 vendor version.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rt3090/config.mk

@@ -84,7 +84,7 @@ HAS_AUTO_CH_SELECT_ENHANCE=n
 HAS_BG_FT_SUPPORT=n
 
 #Support Antenna Diversity
-HAS_ANTENNA_DIVERSITY_SUPPORT=y
+HAS_ANTENNA_DIVERSITY_SUPPORT=n
 #################################################
 
 WFLAGS := -DAGGREGATION_SUPPORT -DPIGGYBACK_SUPPORT -DWMM_SUPPORT  -DLINUX -Wall -Wstrict-prototypes -Wno-trigraphs -Wpointer-sign