rockchip: fix missing ".patch" file extension

Fixes missing .patch file extension in:
- https://github.com/openwrt/openwrt/commit/de9ad11dac094b6074c9b23341acbc28806404ae
- https://github.com/openwrt/openwrt/commit/2e7d060fd1ba6160067df1a2ba303c7c2efe2a7e

Signed-off-by: Tomas Lara <tl849670@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18281
Signed-off-by: Robert Marko <robimarko@gmail.com>

diff --git a/target/linux/rockchip/patches-6.6/401-1-nanopi-r6-show-boot-status-on-system-led b/target/linux/rockchip/patches-6.6/401-1-nanopi-r6-show-boot-status-on-system-led.patch
similarity index 100%
rename from target/linux/rockchip/patches-6.6/401-1-nanopi-r6-show-boot-status-on-system-led
rename to target/linux/rockchip/patches-6.6/401-1-nanopi-r6-show-boot-status-on-system-led.patch

diff --git a/target/linux/rockchip/patches-6.6/401-2-nanopi-r6-reset-button b/target/linux/rockchip/patches-6.6/401-2-nanopi-r6-reset-button.patch
similarity index 100%
rename from target/linux/rockchip/patches-6.6/401-2-nanopi-r6-reset-button
rename to target/linux/rockchip/patches-6.6/401-2-nanopi-r6-reset-button.patch