Partially revert "usb: Kconfig: using select for USB_COMMON dependency"

It causes USB_COMMON to be built-in for no good reason.

debian/changelog

@@ -22,6 +22,8 @@ linux (4.9.2-1~exp1) UNRELEASED; urgency=medium
   * drm: Enable DRM_LEGACY; re-enable DRM_TDFX, DRM_R128, DRM_MGA, DRM_SIS,
     DRM_VIA, DRM_SAVAGE as modules for some architectures
   * 8250: Disable SERIAL_8250_LPSS, since it causes DW_DMAC_CORE to be built-in
+  * Partially revert "usb: Kconfig: using select for USB_COMMON dependency",
+    since it causes USB_COMMON to be built-in
 
   [ John Paul Adrian Glaubitz ]
   * [sh3] Build a linux-libc-dev package (Closes: #850732)

debian/patches/bugfix/all/partially-revert-usb-kconfig-using-select-for-usb_co.patch

@@ -0,0 +1,28 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Wed, 11 Jan 2017 04:30:40 +0000
+Subject: Partially revert "usb: Kconfig: using select for USB_COMMON  dependency"
+
+This reverts commit cb9c1cfc86926d0e86d19c8e34f6c23458cd3478 for
+USB_LED_TRIG.  This config symbol has bool type and enables extra code
+in usb_common itself, not a separate driver.  Enabling it should not
+force usb_common to be built-in!
+
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+---
+ drivers/usb/Kconfig | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
+index 644e978cbd3e..989c6208678f 100644
+--- a/drivers/usb/Kconfig
++++ b/drivers/usb/Kconfig
+@@ -152,8 +152,7 @@ source "drivers/usb/gadget/Kconfig"
+ 
+ config USB_LED_TRIG
+ 	bool "USB LED Triggers"
+-	depends on LEDS_CLASS && LEDS_TRIGGERS
+-	select USB_COMMON
++	depends on LEDS_CLASS && USB_COMMON && LEDS_TRIGGERS
+ 	help
+ 	  This option adds LED triggers for USB host and/or gadget activity.
+ 

debian/patches/series

@@ -63,6 +63,7 @@ bugfix/all/fs-add-module_softdep-declarations-for-hard-coded-cr.patch
 bugfix/all/kbuild-do-not-use-hyphen-in-exported-variable-name.patch
 bugfix/all/ext4-fix-bug-838544.patch
 bugfix/all/mm-memcontrol-use-special-workqueue-for-creating-per-memcg-caches.patch
+bugfix/all/partially-revert-usb-kconfig-using-select-for-usb_co.patch
 
 # Miscellaneous features