Fix faulty SPDX license keys

Signed-off-by: Ayan Sinha Mahapatra <[email protected]>

Author: AyanSinhaMahapatra

src/licensedcode/data/licenses/gcc-exception-3.0.LICENSE

@@ -6,7 +6,7 @@ category: Copyleft Limited
 owner: Free Software Foundation (FSF)
 homepage_url: http://www.gnu.org/licenses/gcc-exception-3.0.html
 is_exception: yes
-spdx_license_key: LicenseRef-scancode-exception-3.0
+spdx_license_key: LicenseRef-scancode-gcc-exception-3.0
 text_urls:
     - http://www.gnu.org/licenses/gcc-exception-3.0.html
 other_urls:

src/licensedcode/data/licenses/proconx-modbus-rev4.LICENSE

@@ -5,7 +5,7 @@ name: proconX Modbus Driver License rev4
 category: Proprietary Free
 owner: proconX
 homepage_url: https://www.modbusdriver.com/info/LICENSE-FREE
-spdx_license_key: LicenseRef-scancode-proconX-modbus-rev4
+spdx_license_key: LicenseRef-scancode-proconx-modbus-rev4
 ---
 
 Free Software License for Binary Distributions