package/rtl8188eu: bump to 903b6fc (v5.2.2.4 branch HEAD)

This allows to build against newer kernels (up to 5.18).
Tested on kernel v5.15.

Signed-off-by: TIAN Yuanhao <tianyuanhao3@163.com>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/rtl8188eu/rtl8188eu.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha256  b2b06c842bccd730d68a26b1c1b5a24f18373401e907147bf5e775fa42a36bbb  rtl8188eu-60cb0b5a3cfc95e3f2e6fc294a28d987096b0559.tar.gz
+sha256  6bc46a13b20a2ed121844e51fd690216b2ab3b1faa1af8d9501090026ca9bd22  rtl8188eu-903b6fcb821465fe9c63e83416080df70c1c3c90.tar.gz
 sha256  af8067302947c01fd9eee72befa54c7e3ef8a48fecde7fd71277f2290b2bf0f7  COPYING

package/rtl8188eu/rtl8188eu.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-RTL8188EU_VERSION = 60cb0b5a3cfc95e3f2e6fc294a28d987096b0559
+RTL8188EU_VERSION = 903b6fcb821465fe9c63e83416080df70c1c3c90
 RTL8188EU_SITE = $(call github,lwfinger,rtl8188eu,$(RTL8188EU_VERSION))
 RTL8188EU_LICENSE = GPL-2.0, proprietary (rtl8188eufw.bin firmware blob)
 RTL8188EU_LICENSE_FILES = COPYING