x86/efi: Fix earlyprintk off-by-one bug
Dave reported seeing the following incorrect output on his Thinkpad T420 when using earlyprintk=efi, [ 0.000000] efi: EFI v2.00 by Lenovo ACPI=0xdabfe000 ACPI 2.0=0xdabfe014 SMBIOS=0xdaa9e000 The output should be on one line, not split over two. The cause is an off-by-one error when checking that the efi_y coordinate hasn't been incremented out of bounds. Reported-by: NDave Young <dyoung@redhat.com> Signed-off-by: NMatt Fleming <matt.fleming@intel.com>
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