MdeModulePkg: Increase the maximum number of PEI performance log entries

MdeModulePkg: Increase the maximum number of PEI performance log entries

The maximum number of PEI performance log entries is 255.
Add a new PCD, PcdMaxPeiPerformanceLogEntries16, to increase the maximum
number of PEI performance log entries.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Cinnamon Shia <cinnamon.shia@hpe.com>
Reviewed-by: Samer EL-Haj-Mahmoud <elhaj@hpe.com>
Reviewed-by: Joseph Shifflett <joseph.shifflett@hpe.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>