Update intel-microcode-netbsd to 20200609.

== 20200609 Release ==
-- Updates upon 20200520 release --
Processor            Identifier    Version      Products
Model        Stepping F-MO-S/PI      Old->New
---- new platforms ----------------------------------------

---- updated platforms ------------------------------------
HSW          C0      6-3c-3/32 00000027->00000028 Core Gen4
BDW-U/Y      E0/F0    6-3d-4/c0 0000002e->0000002f Core Gen5
HSW-U        C0/D0    6-45-1/72 00000025->00000026 Core Gen4
HSW-H        C0      6-46-1/32 0000001b->0000001c Core Gen4
BDW-H/E3    E0/G0    6-47-1/22 00000021->00000022 Core Gen5
SKL-U/Y      D0      6-4e-3/c0 000000d6->000000dc Core Gen6 Mobile
SKL-U23e    K1      6-4e-3/c0 000000d6->000000dc Core Gen6 Mobile
SKX-SP      B1      6-55-3/97 01000151->01000157 Xeon Scalable
SKX-SP      H0/M0/U0 6-55-4/b7 02000065->02006906 Xeon Scalable
SKX-D        M1      6-55-4/b7 02000065->02006906 Xeon D-21xx
CLX-SP      B0      6-55-6/bf 0400002c->04002f01 Xeon Scalable Gen2
CLX-SP      B1      6-55-7/bf 0500002c->05002f01 Xeon Scalable Gen2
SKL-H/S      R0/N0    6-5e-3/36 000000d6->000000dc Core Gen6; Xeon E3 v5
AML-Y22      H0      6-8e-9/10 000000ca->000000d6 Core Gen8 Mobile
KBL-U/Y      H0      6-8e-9/c0 000000ca->000000d6 Core Gen7 Mobile
CFL-U43e    D0      6-8e-a/c0 000000ca->000000d6 Core Gen8 Mobile
WHL-U        W0      6-8e-b/d0 000000ca->000000d6 Core Gen8 Mobile
AML-Y42      V0      6-8e-c/94 000000ca->000000d6 Core Gen10 Mobile
CML-Y42      V0      6-8e-c/94 000000ca->000000d6 Core Gen10 Mobile
WHL-U        V0      6-8e-c/94 000000ca->000000d6 Core Gen8 Mobile
KBL-G/H/S/E3 B0      6-9e-9/2a 000000ca->000000d6 Core Gen7; Xeon E3 v6
CFL-H/S/E3  U0      6-9e-a/22 000000ca->000000d6 Core Gen8 Desktop, Mobile, Xeon E
CFL-S        B0      6-9e-b/02 000000ca->000000d6 Core Gen8
CFL-H/S      P0      6-9e-c/22 000000ca->000000d6 Core Gen9
CFL-H        R0      6-9e-d/22 000000ca->000000d6 Core Gen9 Mobile

---- removed platforms ------------------------------------

(msaitoh)