Alacritech: reword firmware license to be distributable

by requesting the firmware to only be "used" on Alacritech products
the granted distribution right one paragraph above is negated.

Signed-off-by: Maximilian Attems <max@stro.at>
Signed-off-by: Christopher Harrer <charrer@alacritech.com>

WHENCE

@@ -463,8 +463,7 @@ Licence:
 	image as part of a Linux or other Open Source operating system kernel
 	in text or binary form as required.
 
-	This firmware may not be modified and may only be used with
-	Alacritech hardware.
+	This firmware may not be modified.
 
 Found in hex form in kernel source.
 
@@ -488,8 +487,7 @@ Licence:
 	image as part of a Linux or other Open Source operating system kernel
 	in text or binary form as required.
 
-	This firmware may not be modified and may only be used with
-	Alacritech hardware.
+	This firmware may not be modified.
 
 Found in hex form in kernel source.