Add RADIOLIB_EXCLUDE_LR2021 in places that excluded LR11x0 (#10112)

To save resources, some devices where LR11x0 was never an option
excluded it from compilation, using RADIOLIB_EXCLUDE_LR11X0 .

As we will soon have LR2021 support, apply the same treatment
to that chip to these devices, by adding RADIOLIB_EXCLUDE_LR2021

variants/nrf52840/meshlink/platformio.ini

@@ -12,6 +12,7 @@ build_flags = ${nrf52840_base.build_flags}
   -DRADIOLIB_EXCLUDE_SX128X=1
   -DRADIOLIB_EXCLUDE_SX127X=1
   -DRADIOLIB_EXCLUDE_LR11X0=1
+  -DRADIOLIB_EXCLUDE_LR2021=1
   
 build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/meshlink>
 debug_tool = jlink
@@ -30,6 +31,7 @@ build_flags = ${nrf52840_base.build_flags}
   -DRADIOLIB_EXCLUDE_SX128X=1
   -DRADIOLIB_EXCLUDE_SX127X=1
   -DRADIOLIB_EXCLUDE_LR11X0=1
+  -DRADIOLIB_EXCLUDE_LR2021=1
   -D USE_EINK
   -D EINK_DISPLAY_MODEL=GxEPD2_213_B74
   -D EINK_WIDTH=250
@@ -51,4 +53,4 @@ lib_deps =
 debug_tool = jlink
 ; If not set we will default to uploading over serial (first it forces bootloader entry by talking 1200bps to cdcacm)
 ; Note: as of 6/2013 the serial/bootloader based programming takes approximately 30 seconds
-;upload_protocol = jlink
+;upload_protocol = jlink