bcmdhd: update WiFi drivers from 1.61.47 --> 1.61.58

Change-Id: I18c95b127faa769151b3d2cb4d90439867af6d9f

Conflicts:
	drivers/net/wireless/bcmdhd/dhd_linux.c

	modified:   drivers/net/wireless/bcmdhd/dhd_linux.c
bcmdhd: update WiFi drivers from 1.61.47 --> 1.61.58
	deleted:    ramdisk/init.omni.rc ramdisk: deprecated,
switched to CM ramdisk instead
Revert "bcmdhd: update WiFi drivers from 1.61.47 --> 1.61.58"

This reverts commit 438c63823e00e6de4c74bdadf90ea7edcbf34dfb.

	modified:   drivers/net/wireless/bcmdhd/dhd_linux.c
Revert "bcmdhd: update WiFi drivers from 1.61.47 --> 1.61.58"
	new file:   ramdisk/init.omni.rc
	deleted:    ramdisk/init.omni.rc deprecated, switched
to CM ramdisk
ramdisk/init.smdk4x12.rc: added insmod exfat modules and dhd module
script: test script