esp8266/esp8266_common.ld: Put .text of more libs into .irom0.text .

Recent vendor SDKs ship libs with code in .text section, which previously
was going into .irom0.text. Adjust the linker script to route these
sections back to iROM (follows upstream change).

esp8266/esp8266_common.ld

@@ -73,6 +73,17 @@ SECTIONS
         _irom0_text_start = ABSOLUTE(.);
         *(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text)
 
+        /* Vendor SDK in v2.1.0-7-gb8fd588 started to build these with
+           -ffunction-sections -fdata-sections, and require routing to
+           irom via linker:
+           https://github.com/espressif/ESP8266_NONOS_SDK/commit/b8fd588a33f0319dc135523b51655e97b483b205
+         */
+
+        *libcrypto.a:(.literal.* .text.*)
+        *libnet80211.a:(.literal.* .text.*)
+        *libwpa.a:(.literal.* .text.*)
+        *libwpa2.a:(.literal.* .text.*)
+
         /* we put some specific text in this section */
 
         *common-hal/*.o*(.literal* .text*)