Documentation/releases/4.15: Fix typo

Change-Id: I3e64793c58f2acfbfc42e46782d68bec97088601
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58775
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/Documentation/releases/coreboot-4.15-relnotes.md b/Documentation/releases/coreboot-4.15-relnotes.md
index 1f5947f..97ed37c 100644
--- a/Documentation/releases/coreboot-4.15-relnotes.md
+++ b/Documentation/releases/coreboot-4.15-relnotes.md
@@ -41,7 +41,7 @@
 Drop the deprecated COREBOOTPAYLOAD option, and replace it with MrChromebox's
 updated UefiPayloadPkg option. Simplify the Kconfig options to make it easier
 to build from upstream edk2 master. Drop the TIANOCORE_USE_8254_TIMER Kconfig
-option since it applied only to CorebootPayloadPkg. Clean up the Makefile now
+option since it applies only to CorebootPayloadPkg. Clean up the Makefile now
 that we're only building from a single Tianocore package/target.
 
 ### Remove old lp4x and ddr4 versions of spd_tools