x86: select kmod-button-hotplug by default

This package is useful by all subtargets, therefore move it to default
packages selection.
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>

target/linux/x86/64/target.mk

 ARCH:=x86_64
 BOARDNAME:=x86_64
-DEFAULT_PACKAGES += kmod-button-hotplug kmod-e1000e kmod-e1000 kmod-r8169 \
-	kmod-igb kmod-bnx2 kmod-forcedeth
+DEFAULT_PACKAGES += kmod-e1000e kmod-e1000 kmod-r8169 kmod-igb kmod-bnx2 \
+	kmod-forcedeth
 
 define Target/Description
         Build images for 64 bit systems including virtualized guests.

target/linux/x86/Makefile

@@ -19,7 +19,7 @@ KERNELNAME:=bzImage
 
 include $(INCLUDE_DIR)/target.mk
 
-DEFAULT_PACKAGES += partx-utils mkf2fs e2fsprogs
+DEFAULT_PACKAGES += partx-utils mkf2fs e2fsprogs kmod-button-hotplug
 
 $(eval $(call BuildTarget))
 

target/linux/x86/generic/target.mk

 BOARDNAME:=Generic
 CPU_TYPE :=pentium4
 FEATURES += audio pci pcie usb
-DEFAULT_PACKAGES += kmod-button-hotplug
 
 define Target/Description
 	Build firmware images for modern x86 based boards with CPUs

target/linux/x86/geode/target.mk

@@ -3,7 +3,6 @@ FEATURES += pci usb gpio
 DEFAULT_PACKAGES += \
 			kmod-crypto-hw-geode kmod-crypto-cbc \
 			kmod-ath5k kmod-ath9k \
-			kmod-button-hotplug \
 			kmod-ledtrig-heartbeat kmod-ledtrig-gpio \
 			kmod-ledtrig-netdev hwclock wpad-basic
 # Geos