[bsp][ch32] fix menuconfig error for risc-v

bsp/wch/risc-v/ch32v103r-evt/Kconfig

@@ -8,5 +8,5 @@ PKGS_DIR := packages
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "../libraries/Kconfig"
+rsource "../Libraries/Kconfig"
 rsource "board/Kconfig"

bsp/wch/risc-v/ch32v208w-r0/Kconfig

@@ -8,5 +8,5 @@ PKGS_DIR := packages
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "../libraries/Kconfig"
+rsource "../Libraries/Kconfig"
 rsource "board/Kconfig"

bsp/wch/risc-v/ch32v307v-r1/Kconfig

@@ -8,5 +8,5 @@ PKGS_DIR := packages
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "../libraries/Kconfig"
+rsource "../Libraries/Kconfig"
 rsource "board/Kconfig"

bsp/wch/risc-v/ch569w-evt/Kconfig

@@ -8,5 +8,5 @@ PKGS_DIR := packages
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "../libraries/Kconfig"
+rsource "../Libraries/Kconfig"
 rsource "board/Kconfig"

bsp/wch/risc-v/yd-ch32v307vct6/Kconfig

@@ -8,5 +8,5 @@ PKGS_DIR := packages
 
 source "$(RTT_DIR)/Kconfig"
 osource "$PKGS_DIR/Kconfig"
-rsource "../libraries/Kconfig"
+rsource "../Libraries/Kconfig"
 rsource "board/Kconfig"