spec: Install missing header files for GRLIB and SPARC

The following files will be installed during SPARC/GRLIB builds:
- bsps/include/grlib/apbuart-regs.h
- bsps/include/grlib/gptimer-regs.h
- bsps/include/grlib/irqamp-regs.h
- bsps/sparc/include/grlib/io.h

Fix issue #5231

spec/build/bsps/objgrlib.yml

@@ -16,6 +16,7 @@ install:
   - bsps/include/grlib/ambapp_bus_grlib.h
   - bsps/include/grlib/ambapp_ids.h
   - bsps/include/grlib/apbuart.h
+  - bsps/include/grlib/apbuart-regs.h
   - bsps/include/grlib/apbuart_cons.h
   - bsps/include/grlib/apbuart_termios.h
   - bsps/include/grlib/b1553brm.h
@@ -28,6 +29,7 @@ install:
   - bsps/include/grlib/genirq.h
   - bsps/include/grlib/gpiolib.h
   - bsps/include/grlib/gptimer.h
+  - bsps/include/grlib/gptimer-regs.h
   - bsps/include/grlib/gr1553b.h
   - bsps/include/grlib/gr1553bc.h
   - bsps/include/grlib/gr1553bc_list.h
@@ -59,6 +61,7 @@ install:
   - bsps/include/grlib/grtc.h
   - bsps/include/grlib/grtm.h
   - bsps/include/grlib/i2cmst.h
+  - bsps/include/grlib/irqamp-regs.h
   - bsps/include/grlib/l2c.h
   - bsps/include/grlib/l4stat.h
   - bsps/include/grlib/mctrl.h

spec/build/bsps/sparc/grp.yml

@@ -15,6 +15,9 @@ install:
 - destination: ${BSP_INCLUDEDIR}/drvmgr
   source:
   - bsps/sparc/include/drvmgr/leon2_amba_bus.h
+- destination: ${BSP_INCLUDEDIR}/grlib
+  source:
+  - bsps/sparc/include/grlib/io.h
 ldflags: []
 links:
 - role: build-dependency