Avoid hardcoded NVRAM path so that the kernel configuration parameter
CONFIG_BCMDHD_NVRAM_PATH is used.

diff --git a/drivers/net/wireless/bcmdhd_4330/dhd_linux.c b/drivers/net/wireless/bcmdhd_4330/dhd_linux.c
--- a/drivers/net/wireless/bcmdhd_4330/dhd_linux.c
+++ b/drivers/net/wireless/bcmdhd_4330/dhd_linux.c
@@ -3623,7 +3623,6 @@ dhd_bus_start(dhd_pub_t *dhdp)
 		dhd_os_sdlock(dhdp);
 #endif 
 
-	sprintf(nv_path, "/etc/calibration");
 	printf("%s: fw_path=%s, nv_path=%s\n", __FUNCTION__, fw_path, nv_path);