[libc] Fix typo in platform_defs.h.inc

Differential Revision: https://reviews.llvm.org/D87687
diff --git a/libc/config/linux/platfrom_defs.h.inc b/libc/config/linux/platform_defs.h.inc
similarity index 100%
rename from libc/config/linux/platfrom_defs.h.inc
rename to libc/config/linux/platform_defs.h.inc
diff --git a/libc/src/__support/CMakeLists.txt b/libc/src/__support/CMakeLists.txt
index c1ee46c..e9f9579 100644
--- a/libc/src/__support/CMakeLists.txt
+++ b/libc/src/__support/CMakeLists.txt
@@ -2,8 +2,8 @@
   common
   DEF_FILE common.h.def
   PARAMS
-    platform_defs=../../config/${LIBC_TARGET_OS}/platfrom_defs.h.inc
+    platform_defs=../../config/${LIBC_TARGET_OS}/platform_defs.h.inc
   GEN_HDR common.h
   DATA_FILES
-    ../../config/${LIBC_TARGET_OS}/platfrom_defs.h.inc
+    ../../config/${LIBC_TARGET_OS}/platform_defs.h.inc
 )