bm-docs: add bare metal driver user guides for bm platform release v2…

…023.06

The commit consists of driver user guides being updated for the bare metal platform release v2023.06.
Following is the list of PF SoC MSS driver UGs being added
  MSS GPIO
  MSS MMUART
  MSS SPI
  MSS Timer
  MSS Watchdog

Following is the list of Soft-IP driver UGs being added
  Core10GBaseKR_PHY
  CoreGPIO
  CoreI2C
  CoreSPI
  CoreSysServices_PF
  CoreUARTapb
  MIV_RV32 HAL
  MIV_UDMA

README.md

@@ -14,7 +14,8 @@
     - [RPMSG](./applications-and-demos/asymmetric-multiprocessing/rpmsg.md)
 
 - Bare Metal Embedded Software
-  - [Bare Metal Software Project Structure](./bare-metal-embedded-software/bare-metal-software-project-structure.md)
+  - [Software Project Structure](./bare-metal-embedded-software/bare-metal-software-project-structure.md)
+  - [Driver User Guides](./bare-metal-embedded-software/bare-metal-driver-user-guides/README.md)
 
 - Benchmarks
   - DMA Benchmarking

bare-metal-embedded-software/README.md

@@ -2,3 +2,4 @@
 
 - Bare Metal Embedded Software
   - [Bare Metal Software Project Structure](./bare-metal-software-project-structure.md)
+  - [Bare Metal Driver User Guides](./bare-metal-driver-user-guides/README.md)

bare-metal-embedded-software/bare-metal-driver-user-guides/README.md

@@ -0,0 +1,5 @@
+# Bare Metal Driver User Guides Index
+
+- Bare Metal Driver User Guides
+  - [PolarFire SoC MSS Driver User Guides](./polarfire-soc-mss-driver-user-guides/README.md)
+  - [Soft IP Driver User Guides](./soft-ip-driver-user-guides/README.md)

bare-metal-embedded-software/bare-metal-driver-user-guides/polarfire-soc-mss-driver-user-guides/README.md

@@ -0,0 +1,8 @@
+# PolarFire SoC MSS Driver User Guides
+
+- [MSS GPIO](./mss-gpio/mss-gpio-driver-user-guide.md)
+- [MSS MMUART](./mss-mmuart/mss-mmuart-driver-user-guide.md)
+- [MSS SPI](./mss-spi/mss-spi-driver-user-guide.md)
+- [MSS Timer](./mss-timer/mss-timer-driver-user-guide.md)
+- [MSS Watchdog](./mss-watchdog/mss-watchdog-driver-user-guide.md)
+