[6.99.39->40] NetWalker ld0 bus clock

[Jun Ebihara <jun%soum.co.jp@localhost>]

During evbarm-earmhf/201403301510Z-obj to evbarm-earmhf/201404100520Z-obj,
NetWalker ld0 bus clock seems changed and can't access ld0.

dmesg Diffs:
https://github.com/ebijun/NetBSD/commit/ab2352229d419e899e72c4d3fd91cd32a3d34752#diff-2f05a6c7867a275ecee3f61a3852d836

-ld0: 4-bit width, bus clock 50.000 MHz   ... works well   20140330
+ld0: 1-bit width, bus clock 166.250 MHz  ... can't access 20140410
+sdmmc0: SD_SEND_SCR send failed.
+sdmmc0: mem init failed

--
Jun Ebihara