.checkpackageignore: update after rtl8192eu update

Commit f445c6355817e7 (package/rtl8192eu: bump to version 2023-06-23 on
branch 5.11.2.1) dropped 0002-Fix-conflicting-get_ra-on-PowerPC.patch but
forgot to update .checkpackageignore, leading to gitlab failures:

.checkpackageignore:1381: ignored file package/rtl8192eu/0002-Fix-conflicting-get_ra-on-PowerPC.patch is missing

https://gitlab.com/buildroot.org/buildroot/-/jobs/4996203885

Fix that.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

.checkpackageignore

@@ -1378,7 +1378,6 @@ package/rpi-userland/0006-interface-vcos-pthreads-CMakeLists.txt-fix-build-wit.p
 package/rpi-userland/0007-GLES2-gl2ext.h-add-GLint64-GLuint64-and-GLsync-typed.patch Upstream
 package/rt-tests/0001-Fix-a-build-issue-with-uClibc-ng.patch Upstream
 package/rt-tests/0002-Makefile-drop-explicit-undefine-PYLIB-for-compatibil.patch Upstream
-package/rtl8192eu/0002-Fix-conflicting-get_ra-on-PowerPC.patch Upstream
 package/rtl_433/0001-CMakeLists.txt-use-pkg-config-to-detect-openssl-when.patch Upstream
 package/rtl_433/0002-minor-Fix-mongoose-build-without-threads.patch Upstream
 package/rtmpdump/0001-include-limits.h.patch Upstream