staging: Fix misspelling of "should" and "shouldn't" in comments.

Some comments misspell "should" or "shouldn't"; this fixes them. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 5afc737..7cf7ea7 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -2719,7 +2719,7 @@
 			wireless_mode = WIRELESS_MODE_B;
 		}
 	}
-#ifdef TO_DO_LIST //// TODO: this function doesn't work well at this time, we shoud wait for FPGA
+#ifdef TO_DO_LIST //// TODO: this function doesn't work well at this time, we should wait for FPGA
 	ActUpdateChannelAccessSetting( pAdapter, pHalData->CurrentWirelessMode, &pAdapter->MgntInfo.Info8185.ChannelAccessSetting );
 #endif
 	priv->ieee80211->mode = wireless_mode;