io_uring: Rename KConfig to Kconfig

Kconfig files are traditionally named "Kconfig".

Fixes: 6f37787 ("io_uring/zcrx: add interface queue and refill queue")
Signed-off-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/5ae387c1465f54768b51a5a1ca87be7934c4b2ad.1739976387.git.geert+renesas@glider.be
Signed-off-by: Jens Axboe <[email protected]>

Author: geertu

Kconfig

@@ -31,4 +31,4 @@ source "lib/Kconfig.debug"
 
 source "Documentation/Kconfig"
 
-source "io_uring/KConfig"
+source "io_uring/Kconfig"