Kconfig: Remove trailing whitespaces in prompt

Remove additional trailing whitespaces in prompt reported by kconfiglib:

warning: DM_PMIC_SANDBOX (defined at drivers/power/pmic/Kconfig:133) has
leading or trailing whitespace in its prompt
warning: <choice> (defined at dts/Kconfig:204) has leading or trailing
whitespace in its prompt

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Felix Brack <fb@ltec.ch>

drivers/power/pmic/Kconfig

@@ -131,7 +131,7 @@ config PMIC_S2MPS11
 	Binding info: doc/device-tree-bindings/pmic/s2mps11.txt
 
 config DM_PMIC_SANDBOX
-	bool "Enable Driver Model for emulated Sandbox PMIC "
+	bool "Enable Driver Model for emulated Sandbox PMIC"
 	depends on DM_PMIC
 	---help---
 	Enable the driver for Sandbox PMIC emulation. The emulated PMIC device

dts/Kconfig

@@ -202,7 +202,7 @@ config SPL_MULTI_DTB_FIT_NO_COMPRESSION
 endchoice
 
 choice
-	prompt "Location of uncompressed DTBs "
+	prompt "Location of uncompressed DTBs"
 	depends on (SPL_MULTI_DTB_FIT_GZIP || SPL_MULTI_DTB_FIT_LZO)
 	default SPL_MULTI_DTB_FIT_DYN_ALLOC if SYS_MALLOC_F