Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/staging/rtl8712/usb_halinit.c b/drivers/staging/rtl8712/usb_halinit.c
index 0e9483b..46287c1 100644
--- a/drivers/staging/rtl8712/usb_halinit.c
+++ b/drivers/staging/rtl8712/usb_halinit.c
@@ -112,7 +112,7 @@
 		/* Initialization for power on sequence, */
 		r8712_write8(padapter, SPS0_CTRL + 1, 0x53);
 		r8712_write8(padapter, SPS0_CTRL, 0x57);
-		/* Enable AFE Macro Block's Bandgap adn Enable AFE Macro
+		/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
 		 * Block's Mbias
 		 */
 		val8 = r8712_read8(padapter, AFE_MISC);