Documentation: mmc: mmc-dev-attrs.txt: Fix typos

Fix typos in mmc-dev-attrs.txt to make documentation clear.
Signed-off-by: NTamara Diaconita <diaconita.tamara@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Documentation/mmc/mmc-dev-attrs.txt

@@ -13,7 +13,7 @@ SD and MMC Device Attributes
 
 All attributes are read-only.
 
-	cid			Card Identifaction Register
+	cid			Card Identification Register
 	csd			Card Specific Data Register
 	scr			SD Card Configuration Register (SD only)
 	date			Manufacturing Date (from CID Register)
@@ -71,6 +71,6 @@ Note on Erase Size and Preferred Erase Size:
 	"preferred_erase_size" is in bytes.
 
 Note on raw_rpmb_size_mult:
-	"raw_rpmb_size_mult" is a mutliple of 128kB block.
+	"raw_rpmb_size_mult" is a multiple of 128kB block.
 	RPMB size in byte is calculated by using the following equation:
 	RPMB partition size = 128kB x raw_rpmb_size_mult