fix(wifi): fix wifi link error when enable wifi debug
Link the library "libpp_dbg.a" to IRAM.
[mapping:pp]
archive: libpp.a
entries:
+ if ESP8266_WIFI_DEBUG_LOG_ENABLE = n:
+ * (noflash_text)
+
+[mapping:pp_dbg]
+archive: libpp_dbg.a
+entries:
+ if ESP8266_WIFI_DEBUG_LOG_ENABLE = y:
* (noflash_text)
[mapping:phy]
