n <len.brown@intel.com> 1327365071 -0500

ACPI, APEI, EINJ Allow empty Trigger Error Action Table

According to the ACPI spec [1] section 18.6.4 the TRIGGER_ERROR action
table can consists of zero elements.

[1] Advanced Configuration and Power Interface Specification
    Revision 5.0, December 6, 2011
	http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf

Signed-off-by: Niklas Sƶderlund <niklas.soderlund@ericsson.com>
Acked-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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