docs(intel): add Sieu Mun and Benjamin Jit Loon as maintainers

Add Sieu Mun Tang and Benjamin Jit Loon Lim as new
Intel SocFPGA platform maintainers and remove the
rest of the Intel SocFPGA platform maintainers.

Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: Ieb9a35e278d70a12351aaccab90ddc7be09dc861
diff --git a/docs/about/maintainers.rst b/docs/about/maintainers.rst
index b58ea71..c6c3e22 100644
--- a/docs/about/maintainers.rst
+++ b/docs/about/maintainers.rst
@@ -469,11 +469,11 @@
 
 Intel SocFPGA platform ports
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-:|M|: Tien Hock Loh <tien.hock.loh@intel.com>
-:|G|: `thloh85-intel`_
-:|M|: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
-:|G|: mabdulha
-:|F|: plat/intel/soc
+:|M|: Sieu Mun Tang <sieu.mun.tang@intel.com>
+:|G|: `sieumunt`_
+:|M|: Benjamin Jit Loon Lim <jit.loon.lim@intel.com>
+:|G|: `BenjaminLimJL`_
+:|F|: plat/intel/soc/
 :|F|: drivers/intel/soc/
 
 MediaTek platform ports
@@ -828,7 +828,8 @@
 .. _soby-mathew: https://github.com/soby-mathew
 .. _sreekare: https://github.com/sreekare
 .. _stephan-gh: https://github.com/stephan-gh
-.. _thloh85-intel: https://github.com/thloh85-intel
+.. _sieumunt: https://github.com/sieumunt
+.. _BenjaminLimJL: https://github.com/BenjaminLimJL
 .. _thomas-arm: https://github.com/thomas-arm
 .. _TonyXie06: https://github.com/TonyXie06
 .. _TravMurav: https://github.com/TravMurav