Remove ASSERT_SLEEPABLE() in mii_phy_auto()

[Masanobu SAITOH <msaitoh%execsw.org@localhost>]

Hi.

A driver uses a spin mutex for mii/ifmedia lock.

When I modified the MDIO access to be sleepable using with
workqueue and kpause(), the following assert() fired:

diff --git a/sys/dev/mii/mii_physubr.c b/sys/dev/mii/mii_physubr.c
index b469387c051b..ec7d7130b2be 100644
--- a/sys/dev/mii/mii_physubr.c
+++ b/sys/dev/mii/mii_physubr.c
@@ -271,7 +271,7 @@ mii_phy_auto(struct mii_softc *sc)
         * delays all the time while the system is running!
         */
        if (sc->mii_flags & MIIF_AUTOTSLEEP) {
-               ASSERT_SLEEPABLE();
+//             ASSERT_SLEEPABLE();
                sc->mii_flags |= MIIF_DOINGAUTO;
                kpause("miiaut", false, hz >> 1, mii->mii_media.ifm_lock);
                mii_phy_auto_timeout_locked(sc);

I think it's OK to remove the above ASSERT_SLEEPABLE().

 Is it OK to commit?

-- 
-----------------------------------------------
                SAITOH Masanobu (msaitoh%execsw.org@localhost
                                 msaitoh%netbsd.org@localhost)