Re-add back the original symbol, typeo.

Fix breaking code by restoring original typeo in efierr.h
EFI_WARN_UNKOWN_GLYPH definition.

Fixes: commit 5d0d538c2574dfe32e87e87ff977f2830ae2990c

Signed-off-by: Nigel Croxon <ncroxon@redhat.com>

inc/efierr.h

@@ -58,6 +58,7 @@ Revision History
 #define EFI_INVALID_LANGUAGE            EFIERR(32)
 #define EFI_COMPROMISED_DATA            EFIERR(33)
 
+#define EFI_WARN_UNKOWN_GLYPH           EFIWARN(1)
 #define EFI_WARN_UNKNOWN_GLYPH          EFIWARN(1)
 #define EFI_WARN_DELETE_FAILURE         EFIWARN(2)
 #define EFI_WARN_WRITE_FAILURE          EFIWARN(3)